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Redken Acidic Bonding Concentrate 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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Redken Acidic Bonding Concentrate Shampoo is the professional bond repair shampoo for damaged, bleached, and colour-treated hair — formulated with citric acid technology that lowers the hair's pH to seal the cuticle, restore bond integrity, and reduce breakage with every wash.
Chemical services, bleach, and heat styling raise the hair's pH and force the cuticle open — leading to moisture loss, colour fade, and structural weakness. Acidic Bonding Concentrate Shampoo corrects this at the chemistry level, using a concentrated citric acid formula to return the hair to its optimal acidic pH. The result: sealed cuticle, improved bond integrity, reduced breakage, and significantly better colour retention for colour-treated hair. Part of the Redken Acidic Bonding Concentrate system — pairs with the conditioner, leave-in treatment, and intensive masque for full bond repair.
Key Ingredient
Citric acid technology — lowers and optimises the hair's pH level with every wash. An acidic pH seals the cuticle, preserves colour molecules, reduces breakage, and maintains the structural integrity of the hair shaft after chemical services.
Best For
• Damaged, bleached, or chemically processed hair
• Colour-treated hair needing improved colour retention between salon visits
• Hair that feels rough, brittle, or breaks easily
• Anyone transitioning from a general shampoo to a targeted bond repair system
• As part of the full Redken Acidic Bonding Concentrate 4-step system
How to Use
1. Wet hair thoroughly.
2. Apply Acidic Bonding Concentrate Shampoo and lather through scalp and mid-lengths.
3. Rinse thoroughly.
4. Follow with Redken Acidic Bonding Concentrate Conditioner.
5. For intensive repair weeks, add the Acidic Bonding Concentrate Leave-In Treatment and Masque to your routine.
6. Use every wash as your primary shampoo.
Available at Zennkai — Canada's lowest professional price on the full Redken Acidic Bonding Concentrate system. 100% authenticated stock. Ships anywhere in Canada. Shop at zennkai.com/collections/redken.