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L'Oreal Professionnel Serioxyl Advanced Denser Hair Density Activator Serum
Returns & Exchanges
RETURN & 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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What It Is
A leave-on scalp serum for thinning hair, concentrated with 5% Stemoxydine and enriched with resveratrol. Stemoxydine is a patented molecule that acts on the follicle's resting phase — shortening telogen, the dormant stage of the hair cycle, so more follicles return to producing hair. Resveratrol, an antioxidant, amplifies its effect on the scalp.
Hair Concerns
- Hair Loss & Thinning
Key Benefits
- 5% Stemoxydine — L'Oréal's maximum concentration. Enriched with resveratrol to sustain stem cell functioning and optimise the hair cycle. Improves follicle renewal and increases hair density. Multiplies the number of hairs with daily use. Results from 6 weeks.
- Up to 22% instant, long-lasting volume. Silicone-free; suitable for sensitive scalps.
Highlighted Ingredients
What Else You Need to Know
The night-application instruction is not a preference — the formula is genuinely light-sensitive, and applying it in the morning wastes the active. Six weeks is also the honest timeline; nothing in this category works faster, and any product claiming otherwise is describing volume, not density. Every purchase earns Beauty with Benefits points, redeemable in-store and online. Authorized L'Oréal Professionnel retailer.
How to Use
Apply evenly to the scalp, ideally at night on towel-dried hair. Part the hair into four sections and spray six times in each. Massage in with the softest part of your fingertips. Leave on — do not rinse. Apply at night: the formula is light-sensitive, so evening application after your full in-shower routine gives optimal results.
Authorized L'Oreal retailer · Zennkai Canada since 1984 · L'ORÉAL PROFESSIONNEL · Salon Professional · Backed by L'Oréal Advanced Research · Patented Glicoamine & Peptide Bonder Technologies · Colour Safe