FREE SHIPPING ON ALL ORDERS OVER $50*
Redken Acidic Grow Full Shampoo
Returns & Exchanges
Thank you for shopping at Zennkai.com.
ONLINE EXCHANGE POLICY
You have 10 calendar days to return an item for EXCHANGE ONLY from the date you received it. As the purchaser you would be responsible for return shipping charges.
Final sale items are not eligible for exchange or store credit. Final Sale items include Litres, Litre Duos, Clearance, Last Chance, Hot Tools, Hair Accessories, Brushes, Combs, Nail Polishes, Nail Accessories, Hair Extensions, and Appliances.
To be eligible for a exchange:
- your item(s) must be either be unused or no more than a quarter of the volume missing.
- your item(s) must be in the original packaging.
- your item(s) need to have the receipt or proof of purchase.
STEP 1 - Complete the online return form in full. Incomplete forms will not be accepted: Click here to download a return form
STEP 2 - Ship your item(s) back to us. You are responsible for return shipping charges. Shipping costs are non-refundable.
STEP 3 - We will immediately notify you on the status of your exchange after inspecting your returned item(s)
STEP 4 - You can exchange your item(s) or receive an online shop credit in the form of an e-gift card
In the event that you cannot find a suitable exchange a merchandise credit for the same value of the product purchased will be issued to you in the form of a store credit. Store credits cannot be redeemed for cash or refunded. You will receive your e-gift card within 5 business days after the exchange is confirmed
RETURNING TO A ZENNKAI SALON LOCATION
Should you prefer to return your online purchases to a location near you, come visit us! Simply bring your items and proof of purchase to our salons, following our set out Exchange Policy.
Final sale items are not eligible for exchange or store credit. Final Sale items include Litres, Litre Duos, Clearance, Last Chance, Hot Tools, Hair Accessories, Brushes, Combs, Nail Polishes, Nail Accessories, Hair Extensions, and Appliances.
If you are not fully satisfied with your purchase we will EXCHANGE it within 10 days with proof of purchase. EXCHANGE OR STORE CREDIT ONLY, NO CASH REFUNDS.
Hair Tools & Appliances
Zennkai provides a 1 year warranty on electrical tools with a manufacturer defect. They can be exchanged within one year of original purchase date, with proof of purchase and in its original packaging/box.
All electrical tools may be returned for exchange only due to manufacturer defect, with proof of purchase and all original components. No exchanges will be given without proof of purchase. Items must be in the original box/packaging. In the event that you cannot find a suitable exchange a merchandise credit for the same value of the product purchased will be issued to you in the form of a store credit.
Hot Tools & Appliances are a FINAL SALE unless manufacturer defect and are not eligible for exchange or store credit.
Shipping
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are nonrefundable.
Contact Us
If you have any questions on how to return your item to us, contact us via email at zennkai@megahairfamily.com.
Corporate Office
310-5491 REGENT ST
BURNABY BC V5C 4H4
Email: zennkai@megahairfamily.com
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Densifying shampoo for thin, flat hair
Your 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.
Best for:
✔ Thin, flat, or fine hair
✔ Hair prone to fall and breakage from brushing
✔ All hair types, including color-treated
KEY BENEFITS
- Visibly fuller, thicker-looking hair — the first step in the system designed to unlock the fullness of +5,000 hair fibers*
- 2X stronger strands — clinically tested to build resilience from the very first step
- 2X less breakage — from brushing and everyday styling
- Gentle, scalp-rebalancing cleanse — removes buildup without disrupting the scalp's natural acid mantle
- Clinically tested to hydrate the scalp — cleans and nourishes in one step
- 1L value size — professional salon results at Zennkai's everyday low price
*91% of users in a consumer study agreed hair feels thicker.
HOW TO USE:
- Apply to wet hair and work into a lather from roots to ends.
- Massage into the scalp, then rinse thoroughly.
- Follow with the Redken Acidic Grow Full Densifying Conditioner.
Pro tip: Complete the full system with the Acidic Grow Full Scalp & Hair Serum and Instant Densifying Spray for maximum density results.
The Science Inside
| Ingredient | What It Does |
|---|---|
| Azelaic Acid | Rebalances the scalp's pH to support a healthier growth environment |
| Caffeine | Energizes and awakens the scalp |
| Prebiotics | Hydrate and protect the scalp's acid mantle |