[Accessibility statement](/content/pages/accessibility-statement/index.html) [Skip to content](/content/collections/shampoos#main/index.html) free returns. buy with confidence free shipping on orders $50+\* [Minis + Sets](https://aquiskhairpep.myshopify.com/collections/sets-and-gifts) [Shampoo + Conditioner](https://aquiskhairpep.myshopify.com/collections/shampoo-conditioner) [New](https://aquiskhairpep.myshopify.com/collections/new) [Bestsellers](https://aquiskhairpep.myshopify.com/collections/bestsellers) Filters View: Sort Featured 7 products [Load PreviousLoad previous page of products](/content/collections/shampoos/index.html) 4.9 Rated 4.9 out of 5 stars 656 Reviews [PEPTIDE PREP™ detox shampoo](/content/products/peptide-prep-detox-shampoo-8-5oz "View PEPTIDE PREP™ detox shampoo 8.5oz"/index.html) Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ Add to bag - Regular price $39 Regular price ~~$0~~ Sale price$39 4.8 Rated 4.8 out of 5 stars 513 Reviews [DAMAGE SHIELD pH protective shampoo](/content/products/damage-shield-protective-shampoo-8-5oz "View DAMAGE SHIELD protective shampoo 8.5oz"/index.html) Color-safe protective shampoo maintains hair health + strength Add to bag - Regular price $39 Regular price ~~$0~~ Sale price$39 4.9 Rated 4.9 out of 5 stars 656 Reviews tsa-approved [mini PEPTIDE PREP™ detox shampoo](/content/products/mini-peptide-prep-detox-shampoo-1-8oz "View mini PEPTIDE PREP™ detox shampoo 1.8oz"/index.html) Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ Add to bag - Regular price $14 Regular price ~~$0~~ Sale price$14 4.8 Rated 4.8 out of 5 stars 513 Reviews tsa-approved [mini DAMAGE SHIELD pH protective shampoo](/content/products/mini-damage-shield-protective-shampoo-1-8oz "View mini DAMAGE SHIELD protective shampoo 1.8oz"/index.html) Color-safe protective shampoo maintains hair health + strength Add to bag - Regular price $14 Regular price ~~$0~~ Sale price$14 4.8 Rated 4.8 out of 5 stars 513 Reviews new [Jumbo DAMAGE SHIELD pH protective shampoo](/content/products/jumbo-damage-shield-protective-shampoo "View Jumbo DAMAGE SHIELD protective shampoo"/index.html) Color-safe protective shampoo maintains hair health + strength - now in a jumbo size Add to bag - Regular price $59 Regular price ~~$0~~ Sale price$59 4.9 Rated 4.9 out of 5 stars 656 Reviews new [Jumbo PEPTIDE PREP™ detox shampoo](/content/products/jumbo-peptide-prep-detox-shampoo "View Jumbo PEPTIDE PREP™ detox shampoo"/index.html) A color-safe, non-stripping clarifying shampoo - now in a jumbo size Add to bag - Regular price $59 Regular price ~~$0~~ Sale price$59 4.9 Rated 4.9 out of 5 stars 339 Reviews [TripleBright oxidation defense purple shampoo](/content/products/triplebright-oxidation-defense-purple-shampoo "View TripleBright oxidation defense purple shampoo"/index.html) Breakthrough triple-action protection for brighter, longer-lasting blonde Add to bag - Regular price $39 Regular price ~~$0~~ Sale price$39 [Load PreviousLoad previous page of products](/content/collections/shampoos/index.html) You’ve viewed 7 of 7 products [Load MoreLoad more products](/content/collections/shampoos/index.html) **Explore the Collection** K18 haircare uses biotech + biomimetics to unlock new and lasting solutions to solve hair concerns with patented tech, problems that traditional cosmetic chemistry has only covered up. Using biotech, we recreate in the lab exactly what all hair types need to stay soft, strong, and bouncy—nothing more, nothing less—for optimal effectiveness in fewer steps, with fewer ingredients, and in less time. With the right technology, everyone can have their healthiest hair. **K18 makes the impossible possible.** - What is biomimetics? Biomimetics is a fancy way of saying “learning from and mimicking nature.” By mimicking the natural structure and molecular makeup of keratin proteins, the K18PEPTIDE™ is the perfect puzzle piece to connect broken keratin chains to renew strength + elasticity. - What is the K18PEPTIDE™? K18PEPTIDE™ is a biotech-developed peptide that mimics hair’s structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during damage from bleach + color, chemical services, and heat\* \*www.k18hair.com/pages/disclaimers - Is the K18PEPTIDE™ in every K18 product? K18 molecular repair, PEPTIDE PREP™ detox shampoo, and DAMAGE SHIELD shampoo + conditioner are formulated with the K18PEPTIDE™. In our molecular repair products, the peptide works at the innermost layers to reverse hair damage. In our PEPTIDE PREP™ detox shampoo, and DAMAGE SHIELD shampoo + conditioner, the peptide helps reduce protein loss to help keep hair feeling healthy and strong. - what is k18 free of? Parabens, Sulfates, Silicones, Phthalates, Sodium Chloride, Artificial colors, Formaldehyde and formaldehyde donors. **Your cart is empty** **Free shipping on all orders over $50** Can we help you find something? [Shop New Arrivals](/content/collections/new-arrivals/index.html) X 10 shop.app # shop.app is blocked This page has been blocked by an extension - Try disabling your extensions. 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