{"title":"Redken Acidic Grow Full","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThin, Flat \u0026amp; Fine Hair with Scalp Concerns\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eEnter Your \u003ca href=\"https:\/\/zennkai.com\/pages\/dense-era\" title=\"Enter your Dense Era | Zennkai Salon\"\u003eDense Era\u003c\/a\u003e with Redken Acidic Grow Full System.\u003c\/p\u003e\n\u003cp\u003eRedken Acidic Grow Full is an advanced scalp-first haircare system clinically formulated to deliver instantly fuller, thicker-looking hair while promoting a healthy, balanced scalp environment. The collection is powered by a 7% Densifying Complex combining Azelaic Acid, Caffeine, and Prebiotics — three active ingredients that work synergistically to rebalance the scalp's acidic pH, support a healthy scalp microbiome, and fortify the hair fibre against breakage from brushing and daily stress. The result is measurably denser-looking hair — equivalent to the appearance of over 5,000 additional hair fibres — from the very first use as a complete system. The regimen includes a densifying shampoo, lightweight conditioner, leave-in scalp and hair serum, and an instant densifying spray, providing a comprehensive professional protocol for thin, flat, and fine hair. With 91% of GLP-1 users experiencing hair loss reporting agreement that hair felt thicker, Redken Acidic Grow Full is the professionally validated solution for those seeking clinically supported hair fullness.\u003c\/p\u003e","products":[{"product_id":"redken-acidic-grow-full-instant-densifying-spray","title":"Redken Acidic Grow Full Instant Densifying Spray","description":"\u003cp\u003e\u003cem\u003eInstant densifying leave-in spray for thin, flat hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eVisibly fuller hair — instantly. This lightweight leave-in treatment is powered by a 5% Densifying Complex that builds fullness from root to end, strengthens strands, and shields hair from heat styling up to 450°F. No weight, no residue, just thicker-looking hair from the very first use.\u003c\/p\u003e\n\u003cp\u003eBest for:\u003c\/p\u003e\n\u003cp\u003e✔ Thin, flat, or fine hair\u003c\/p\u003e\n\u003cp\u003e✔ Hair prone to breakage and fall from brushing\u003c\/p\u003e\n\u003cp\u003e✔ All hair types, including color-treated\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstant volume\u003c\/strong\u003e — visibly fuller, thicker-looking hair after one use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested to reduce breakage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalp-hydrating\u003c\/strong\u003e — clinically tested to nourish and balance the scalp's acid mantle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat protection up to 450°F\u003c\/strong\u003e — style freely without compromise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart of the Acidic Grow Full System\u003c\/strong\u003e — formulated to unlock the fullness of +5,000 hair fibers*\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eApply to damp hair, misting from at least 6 inches away onto mid-lengths to ends.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWork through hair with a comb.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDo not rinse. Style as usual.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003ePro tip: Pair with the Redken Acidic Grow Full Densifying \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo\" title=\"Redken Acidic Grow Full Shampoo\"\u003eShampoo\u003c\/a\u003e, \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner\" title=\"Redken Acidic Grow Full Conditioner\"\u003eConditioner\u003c\/a\u003e, and \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\" title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\"\u003eScalp \u0026amp; Hair Serum\u003c\/a\u003e for maximum density results.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eThe Science Inside\u003c\/h3\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eIngredient\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRebalances the scalp's pH for a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eMoisturize and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Redken","offers":[{"title":"200ml","offer_id":48965119410416,"sku":"884486542458","price":46.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullDensifyingSpray.jpg?v=1773077230"},{"product_id":"redken-acidic-grow-full-scalp-hair-serum","title":"Redken Acidic Grow Full Scalp \u0026 Hair Serum","description":"\u003cp\u003e\u003cem\u003eDensifying scalp \u0026amp; hair serum for thin, flat hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eStart at the source. This lightweight scalp serum works where density begins — directly at the root. Formulated with a 5% Strength Complex and pH-rebalancing Azelaic Acid, it nourishes the scalp, reduces breakage, and creates the ideal environment for thicker, denser-looking hair over time. Use on damp or dry hair, no rinsing required.\u003c\/p\u003e\n\u003cp class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cem\u003eBest for:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e✔ Thin, flat, or fine hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e✔ Hair prone to fall and breakage from brushing\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e✔ All hair types, including color-treated\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDenser, fuller-looking hair\u003c\/strong\u003e — part of the Acidic Grow Full System, designed to unlock the fullness of +5,000 hair fibers*\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested to fortify hair from within\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalp pH rebalancing\u003c\/strong\u003e — Azelaic Acid restores the scalp's natural acid mantle for a healthier growth environment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClinically tested to hydrate the scalp\u003c\/strong\u003e — moisture where it matters most\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight, no-rinse formula\u003c\/strong\u003e — works on both damp and dry hair, no disruption to your routine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eOn damp or dry hair, spray directly onto the scalp and roots from about 1 inch away.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eUse fingertips to massage the serum into the scalp.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDo not rinse. Style as usual.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003ePro tip: For full system results, pair with the Redken Acidic Grow Full Densifying \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo\" title=\"Redken Acidic Grow Full Shampoo\"\u003eShampoo\u003c\/a\u003e, \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner\" title=\"Redken Acidic Grow Full Conditioner\"\u003eConditioner\u003c\/a\u003e, and \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\" title=\"Redken Acidic Grow Full Instant Densifying Spray\"\u003eInstant Densifying Spray\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eThe Science Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eIngredient\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eRebalances the scalp's pH to support a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eHydrate and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Redken","offers":[{"title":"100ml","offer_id":48965138874608,"sku":"3474637325510","price":55.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullScalpSerum.jpg?v=1773078190"},{"product_id":"redken-acidic-grow-full-conditioner-1l","title":"Redken Acidic Grow Full Conditioner 1L","description":"\u003cp\u003e\u003cem\u003eDensifying conditioner for thin, flat hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eCondition without compromise. This lightweight, nourishing conditioner is specifically formulated for thin and flat hair — hydrating strands deeply while adding visible body and fullness without weighing hair down. Part of the Acidic Grow Full System, it builds on your shampoo step to deliver softer, stronger, denser-looking hair wash after wash.\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cem\u003eBest For:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e✔ Thin, flat, or fine hair\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e✔ Hair prone to fall and breakage from brushing\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e✔ All hair types, including color-treated\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisibly fuller, thicker-looking hair\u003c\/strong\u003e — part of the system designed to unlock the fullness of +5,000 hair fibers*\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested to fortify hair with every wash\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClinically tested to hydrate the scalp\u003c\/strong\u003e — moisture that works from root to end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight formula\u003c\/strong\u003e — conditions and adds body without dragging fine hair down\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1L value size\u003c\/strong\u003e — salon-quality results at a fraction of the salon price\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAfter shampooing with \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo\" title=\"Redken Acidic Grow Full Shampoo\"\u003eRedken Acidic Grow Full Densifying Shampoo\u003c\/a\u003e, apply conditioner from mid-lengths to ends.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDistribute evenly through hair.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRinse thoroughly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003ePro tip: Follow with the \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\" title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\"\u003eAcidic Grow Full Scalp \u0026amp; Hair Serum\u003c\/a\u003e and \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\" title=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\"\u003eInstant Densifying Spray\u003c\/a\u003e for full system density results.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eThe Science Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 16.3335%;\"\u003eIngredient\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 83.4822%;\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eRebalances the scalp's pH to support a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eHydrate and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Redken","offers":[{"title":"1L","offer_id":48965142839536,"sku":"884486536655","price":58.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullCond_2.jpg?v=1773078735"},{"product_id":"redken-acidic-grow-full-conditioner","title":"Redken Acidic Grow Full Conditioner","description":"\u003cp\u003e\u003cem\u003eDensifying conditioner for thin, flat hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eCondition without compromise. This lightweight, nourishing conditioner is specifically formulated for thin and flat hair — hydrating strands deeply while adding visible body and fullness without weighing hair down. Part of the Acidic Grow Full System, it builds on your shampoo step to deliver softer, stronger, denser-looking hair wash after wash.\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cem\u003eBest For:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e✔ Thin, flat, or fine hair\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e✔ Hair prone to fall and breakage from brushing\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e✔ All hair types, including color-treated\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisibly fuller, thicker-looking hair\u003c\/strong\u003e — part of the system designed to unlock the fullness of +5,000 hair fibers*\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested to fortify hair with every wash\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClinically tested to hydrate the scalp\u003c\/strong\u003e — moisture that works from root to end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight formula\u003c\/strong\u003e — conditions and adds body without dragging fine hair down\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAfter shampooing with \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo\" title=\"Redken Acidic Grow Full Shampoo\"\u003eRedken Acidic Grow Full Densifying Shampoo\u003c\/a\u003e, apply conditioner from mid-lengths to ends.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDistribute evenly through hair.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRinse thoroughly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003ePro tip: Follow with the \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\" title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\"\u003eAcidic Grow Full Scalp \u0026amp; Hair Serum\u003c\/a\u003e and \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\" title=\"Redken Acidic Grow Full Instant Densifying Spray\"\u003eInstant Densifying Spray\u003c\/a\u003e for full system density results.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eThe Science Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 16.3335%;\"\u003eIngredient\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 83.4822%;\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eRebalances the scalp's pH to support a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eHydrate and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Redken","offers":[{"title":"300ml","offer_id":48965145624816,"sku":"884486536648","price":37.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullCond.jpg?v=1773079043"},{"product_id":"redken-acidic-grow-full-shampoo-1l","title":"Redken Acidic Grow Full Shampoo 1L","description":"\u003cp\u003e\u003cem\u003eDensifying shampoo for thin, flat hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eYour density routine starts here. This gentle, pH-rebalancing shampoo cleanses the scalp while laying the foundation for visibly fuller, thicker hair with every wash. Powered by a 5% Densifying Complex and formulated for fine, flat hair, it removes buildup without stripping — leaving the scalp balanced and hair primed for the fullness it delivers throughout the rest of the system.\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cem\u003eBest for:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e✔ Thin, flat, or fine hair\u003cbr\u003e✔ Hair prone to fall and breakage from brushing\u003cbr\u003e✔ All hair types, including color-treated\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eVisibly fuller, thicker-looking hair\u003c\/strong\u003e — the first step in the system designed to unlock the fullness of +5,000 hair fibers*\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested to build resilience from the very first step\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eGentle, scalp-rebalancing cleanse\u003c\/strong\u003e — removes buildup without disrupting the scalp's natural acid mantle\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eClinically tested to hydrate the scalp\u003c\/strong\u003e — cleans and nourishes in one step\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1L value size\u003c\/strong\u003e — professional salon results at Zennkai's everyday low price\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eApply to wet hair and work into a lather from roots to ends.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMassage into the scalp, then rinse thoroughly.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFollow with the \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner\" title=\"Redken Acidic Grow Full Conditioner\"\u003eRedken Acidic Grow Full Densifying Conditioner\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003ePro tip: Complete the full system with the \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\" title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\"\u003eAcidic Grow Full Scalp \u0026amp; Hair Serum\u003c\/a\u003e and \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\" title=\"Redken Acidic Grow Full Instant Densifying Spray\"\u003eInstant Densifying Spray\u003c\/a\u003e for maximum density results.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe Science Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 16.3335%;\"\u003eIngredient\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 83.4822%;\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eRebalances the scalp's pH to support a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eHydrate and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Redken","offers":[{"title":"1L","offer_id":48965152342256,"sku":"884486536600","price":58.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullSham_2.jpg?v=1773080279"},{"product_id":"redken-acidic-grow-full-shampoo","title":"Redken Acidic Grow Full Shampoo","description":"\u003cp\u003e\u003cem\u003eDensifying shampoo for thin, flat hair\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eYour density routine starts here. This gentle, pH-rebalancing shampoo cleanses the scalp while laying the foundation for visibly fuller, thicker hair with every wash. Powered by a 5% Densifying Complex and formulated for fine, flat hair, it removes buildup without stripping — leaving the scalp balanced and hair primed for the fullness it delivers throughout the rest of the system.\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cem\u003eBest for:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e✔ Thin, flat, or fine hair\u003cbr\u003e✔ Hair prone to fall and breakage from brushing\u003cbr\u003e✔ All hair types, including color-treated\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eVisibly fuller, thicker-looking hair\u003c\/strong\u003e — the first step in the system designed to unlock the fullness of +5,000 hair fibers*\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested to build resilience from the very first step\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eGentle, scalp-rebalancing cleanse\u003c\/strong\u003e — removes buildup without disrupting the scalp's natural acid mantle\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eClinically tested to hydrate the scalp\u003c\/strong\u003e — cleans and nourishes in one step\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1L value size\u003c\/strong\u003e — professional salon results at Zennkai's everyday low price\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eApply to wet hair and work into a lather from roots to ends.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMassage into the scalp, then rinse thoroughly.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFollow with the \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner\" title=\"Redken Acidic Grow Full Conditioner\"\u003eRedken Acidic Grow Full Densifying Conditioner\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003ePro tip: Complete the full system with the \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\" title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\"\u003eAcidic Grow Full Scalp \u0026amp; Hair Serum\u003c\/a\u003e and \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\" title=\"Redken Acidic Grow Full Instant Densifying Spray\"\u003eInstant Densifying Spray\u003c\/a\u003e for maximum density results.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe Science Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 16.3335%;\"\u003eIngredient\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 83.4822%;\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eRebalances the scalp's pH to support a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eHydrate and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Redken","offers":[{"title":"300ml","offer_id":48965174067440,"sku":"884486536594","price":37.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullSham.jpg?v=1773080159"},{"product_id":"redken-acidic-grow-full-bundle-for-thinning-or-flat-hair","title":"Redken Acidic Grow Full Bundle for Thinning or Flat Hair","description":"\u003cp\u003e\u003cem\u003eAcidic Grow Full System Shampoo, Conditioner, Serum \u0026amp; Densifying Spray\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe full system. The full result. When all four Acidic Grow Full products work together, they unlock the fullness of +5,000 hair fibers* — cleansing, conditioning, rebalancing, and densifying at every step of your routine. This bundle gives you everything you need to go from flat and thinning to visibly fuller, stronger, denser hair, and saves you $26.85 compared to buying each product individually.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cem\u003eBest For:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cem\u003e✔ Thin, flat, or fine hair\u003cbr\u003e✔ Hair prone to fall and breakage from brushing\u003cbr\u003e✔ Anyone starting or committing to a full density routine\u003cbr\u003e✔ All hair types, including color-treated\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e① \u003ca title=\"Redken Acidic Grow Full Shampoo\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo\"\u003eAcidic Grow Full Densifying Shampoo\u003c\/a\u003e\u003c\/strong\u003e The system starts here. Gently cleanses and rebalances scalp pH while laying the foundation for visibly fuller hair with every wash.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e② \u003ca title=\"Redken Acidic Grow Full Conditioner\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner\"\u003eAcidic Grow Full Densifying Conditioner\u003c\/a\u003e\u003c\/strong\u003e Lightweight hydration that builds body without weight. Conditions strands from mid-length to ends, leaving hair softer, stronger, and primed for density.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e③ \u003ca title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\"\u003eAcidic Grow Full Scalp \u0026amp; Hair Serum\u003c\/a\u003e\u003c\/strong\u003e The targeted treatment step. Sprays directly onto the scalp to energize the root environment, reduce breakage, and build long-term density where it starts.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e④ \u003ca title=\"Redken Acidic Grow Full Instant Densifying Spray\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\"\u003eAcidic Grow Full Instant Densifying Spray\u003c\/a\u003e\u003c\/strong\u003e The finishing touch. A no-rinse leave-in that delivers immediate visible fullness while protecting hair from heat styling up to 450°F.\u003c\/p\u003e\n\u003cp class=\"c-content-tile__title\"\u003e\u003cstrong\u003eKEY BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisibly fuller, thicker-looking hair\u003c\/strong\u003e — powered by the +5,000 hair fiber Densifying Complex*\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X stronger strands\u003c\/strong\u003e — clinically tested across the full system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2X less breakage\u003c\/strong\u003e — from brushing and everyday styling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalp pH rebalancing\u003c\/strong\u003e — Azelaic Acid targets the root cause of thinning at the source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClinically tested to hydrate the scalp\u003c\/strong\u003e — every step nourishes as it treats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSave 15%\u003c\/strong\u003e — vs. buying each product separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003e*91% of users in a consumer study agreed hair feels thicker.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHOW TO USE: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eApply \u003ca title=\"Redken Acidic Grow Full Shampoo\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo\"\u003eAcidic Grow Full Shampoo\u003c\/a\u003e to wet hair. Lather and rinse.\u003cbr\u003e2. After shampooing, apply \u003ca title=\"Redken Acidic Grow Full Conditioner\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner\"\u003eAcidic Grow Full Conditioner\u003c\/a\u003e from mid-length to ends. Rinse.\u003cbr\u003e3. Spray \u003ca title=\"Redken Acidic Grow Full Scalp \u0026amp; Hair Serum\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-scalp-hair-serum\"\u003eAcidic Grow Full Scalp \u0026amp; Hair Serum\u003c\/a\u003e half an inch away from the scalp on clean, damp hair. Massage into scalp.\u003cbr\u003e4. Spray \u003ca title=\"Redken Acidic Grow Full Instant Densifying Spray\" href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-instant-densifying-spray\"\u003eAcidic Grow Full Densifying Spray\u003c\/a\u003e six inches away from hair, on clean, damp hair. Comb through from mid-sections to ends.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eThe Science Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 16.3335%;\"\u003eIngredient\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\" style=\"width: 83.4822%;\"\u003eWhat It Does\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eAzelaic Acid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eRebalances the scalp's pH to support a healthier growth environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003eCaffeine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eEnergizes and awakens the scalp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 16.3335%;\"\u003e\u003cstrong\u003ePrebiotics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\" style=\"width: 83.4822%;\"\u003eHydrate and protect the scalp's acid mantle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Redken","offers":[{"title":"Default Title","offer_id":48965197103344,"sku":null,"price":151.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullBundle.jpg?v=1773081551"},{"product_id":"redken-acidic-grow-full-litre-duo","title":"Redken Acidic Grow Full Litre Duo","description":"\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"Redken Acidic Grow Full Litre Duo\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Redken\"},\"description\":\"Redken Acidic Grow Full Litre Duo. 1 litre shampoo and 1 litre conditioner combining acidic bonding bond repair with volumising technology for fine, thinning, and colour-treated hair needing both strength and fullness. Available at Zennkai Canada.\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"CAD\",\"price\":105.95,\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"Zennkai\",\"url\":\"https:\/\/zennkai.com\"}}}\u003c\/script\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 4.0pt;\"\u003e\u003cspan style=\"color: #2a2a2a;\"\u003eThe Redken Acidic Grow Full Litre Duo is the professional 1-litre shampoo and conditioner that addresses two needs simultaneously — the bond damage that colour and heat cause in fine hair, and the volume deficit that makes fine hair feel limp and flat — using acidic bonding technology for cuticle sealing and a volumising complex that lifts without the protein heaviness that can flatten fine strands, at Canada's lowest price.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 2.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 6.0pt 0cm 2.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"color: #18191e;\"\u003eWhat's Included\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-shampoo-1l\" title=\"Redken Acidic Grow Full Shampoo 1L | Buy in Canada | Zennkai\"\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eRedken Acidic Grow Full Shampoo — 1 litre (1000ml)\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/zennkai.com\/collections\/redken\/products\/redken-acidic-grow-full-conditioner-1l\" title=\"Redken Acidic Grow Full Conditioner 1L | Buy in Canada | Zennkai\"\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eRedken Acidic Grow Full Conditioner — 1 litre (1000ml)\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 2.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 6.0pt 0cm 2.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"color: #18191e;\"\u003eWhy Buy the Litre Size\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eSave 27% vs buying two regular bottles — fine hair benefits from consistent daily use and the litre provides that without frequent repurchasing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eFine hair's combination of bond vulnerability and volume needs makes this a year-round daily system\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003e1000ml vs 900ml from three regular bottles — 100ml extra free every purchase\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eProfessional salon size not available at Sephora — Zennkai is an authorized Canadian source\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eLasts approximately 4–6 months for fine, medium-length hair with daily use\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 2.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 6.0pt 0cm 2.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"color: #18191e;\"\u003eAbout Redken Acidic Grow Full\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 4.0pt;\"\u003e\u003cspan style=\"color: #2a2a2a;\"\u003eRedken Acidic Grow Full represents a newer generation of Redken's acidic bonding innovation — recognizing that fine, colour-treated hair has compound needs that aren't fully served by bond repair or volume alone. The acidic pH chemistry seals the cuticle and protects bonds; the volumising complex lifts at the root without the weight that causes fine hair to flatten by midday. The result is hair that feels structurally sound, bouncy, and full — not just temporarily lifted.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 2.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 6.0pt 0cm 2.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"color: #18191e;\"\u003eKey Ingredient\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 4.0pt;\"\u003e\u003cspan style=\"color: #2a2a2a;\"\u003eAcidic bonding technology — lowers pH to seal the cuticle and protect colour-treated bonds in fine hair. Volumising complex — a lightweight filling agent that builds body and lift at the root without protein heaviness or surface buildup that weighs fine hair down.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 2.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 6.0pt 0cm 2.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"color: #18191e;\"\u003eBest For\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eFine, colour-treated hair needing bond repair without losing volume\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eThinning fine hair that's also chemically processed\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eAnyone whose fine hair goes limp quickly after colouring or highlighting\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eClients wanting the benefits of Acidic Bonding Concentrate in a lighter, volume-friendly formula\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ListParagraph\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1; margin: 0cm 0cm 2.5pt 36.0pt;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-fareast-font-family: Arial;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan style=\"font-size: 10.0pt; color: #333333;\"\u003eFine hair where both structural protection and visual fullness are priorities\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 2.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 4.0pt;\"\u003e\u003cspan style=\"color: #2a2a2a;\"\u003eAvailable at Zennkai — Canada's lowest professional price on Redken. Authorized retailer. 100% authenticated professional stock. Free shipping on orders over $50. Ships anywhere in Canada. Beauty with Benefits members earn points on every purchase — join free at \u003ca href=\"https:\/\/zennkai.com\/pages\/beauty-with-benefits-2-0-new\" title=\"Beauty with Benefits | Rewards \u0026amp; Discounts | Zennkai\"\u003ezennkai.com\/pages\/beauty-with-benefits\u003c\/a\u003e. Shop the full Redken collection at \u003ca href=\"https:\/\/zennkai.com\/collections\/redken\" title=\"Redken Haircare Canada | Zennkai\"\u003ezennkai.com\/collections\/redken\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Redken","offers":[{"title":"Default Title","offer_id":48965210734832,"sku":null,"price":105.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/files\/RedkenAcidicGrowFullLitreDuo.jpg?v=1773082396"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1253\/1225\/collections\/BRAND_BANNERS_59.jpg?v=1774894541","url":"https:\/\/zennkai.com\/collections\/redken-acidic-grow-full.oembed","provider":"Zennkai","version":"1.0","type":"link"}