FREE SHIPPING ON ALL ORDERS OVER $50*
Nioxin System 1 Litre Duo
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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The Nioxin System 1 Litre Duo is the professional 1-litre cleanser and conditioner for natural hair that is fine and slightly thinning — Nioxin's #1 system in Canada for thinning hair, using BioAMP Technology to amplify the appearance of fuller, thicker hair from the first wash, with one of the highest savings percentages in the Zennkai litre range, at Canada's lowest price.
What's Included
• Nioxin System 1 Cleanser — 1 litre (1000ml)
• Nioxin System 1 Scalp Therapy Conditioner — 1 litre (1000ml)
Why Buy the Litre Size
• Save 48% vs buying two regular-size Nioxin bottles — one of the highest savings percentages in the entire Zennkai litre duo range
• Nioxin requires consistent daily use for cumulative scalp and density results — the litre provides that commitment at exceptional value
• Not available at Sephora in litre size — professional salon-channel exclusive at Zennkai
• 1000ml vs 900ml from three regular bottles — 100ml extra free every purchase
• Lasts approximately 3–4 months with daily use
About Nioxin System 1
Nioxin is the #1 thinning hair brand in Canadian salons — a reputation built on 30+ years of professional scalp science. System 1 is formulated for natural hair that is fine and slightly thinning — addressing the early-stage thinning where the scalp environment and hair density benefit most from targeted professional intervention. BioAMP Technology amplifies the appearance of fuller, thicker hair while the system cleanses the scalp of DHT, sebum, and buildup that can impede healthy hair growth.
Key Ingredient
BioAMP Technology — Nioxin's proprietary blend of proteins and extracts that amplify hair fiber thickness and improve scalp micro-circulation for fuller-appearing hair. Scalp access cleanser — removes DHT, sebum, and follicle-blocking deposits from the scalp surface to support a healthy hair growth environment.
Best For
• Natural, untreated fine hair with slight thinning
• First-stage thinning where scalp health intervention is most impactful
• Men and women experiencing age or lifestyle-related mild density reduction
• Anyone who has noticed their ponytail is thinner than it used to be
• Clients beginning a professional thinning hair routine for the first time
Available at Zennkai — Canada's lowest professional price on Nioxin. 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 zennkai.com/pages/beauty-with-benefits. Shop the full Nioxin collection at zennkai.com/collections/nioxin.