Bestsellers | K18Hair

Accessibility statement Skip to content

free returns. buy with confidence

free shipping on orders $50+*

Minis + Sets

Shampoo + Conditioner

New

Bestsellers

Filters

View:

Sort Featured

9 products

Load PreviousLoad previous page of products

4.7

Rated 4.7 out of 5 stars

9,182 Reviews

bestseller

[full-size leave-in molecular repair hair mask](/content/products/leave-in-molecular-repair-hair-mask-50-ml "View Full-Size Leave-In Molecular Repair Hair Mask 50mL"/index.html) 4-minute leave-in treatment to reverse hair damage

Add to bag -

Regular price $75

Regular price $0 Sale price$75

4.8

Rated 4.8 out of 5 stars

528 Reviews

bestseller

[HeatBounce conditioning heat protectant](/content/products/heatbounce-4oz "View HeatBounce conditioning heat protectant 4oz"/index.html) The future of heat protection

Add to bag -

Regular price $48

Regular price $0 Sale price$48

4.7

Rated 4.7 out of 5 stars

656 Reviews

bestseller

[AirWash™ dry shampoo](/content/products/airwash-dry-shampoo-4oz "View AirWash™ dry shampoo 4oz"/index.html) Revolutionary dry shampoo for fresh hair + scalp—even after your toughest workout

Add to bag -

Regular price $48

Regular price $0 Sale price$48

4.8

Rated 4.8 out of 5 stars

1,021 Reviews

[K18 molecular repair hair oil](/content/products/molecular-repair-hair-oil "View Molecular Repair Hair Oil"/index.html) Weightless oil that strengthens, repairs damage + reduces frizz

Add to bag -

Regular price $65

Regular price $0 Sale price$65

4.8

Rated 4.8 out of 5 stars

665 Reviews

[DAMAGE SHIELD protective conditioner](/content/products/damage-shield-protective-conditioner-8-5oz "View DAMAGE SHIELD protective conditioner 8.5oz"/index.html) Color-safe protective conditioner maintains hair health + strength

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

[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

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

4.7

Rated 4.7 out of 5 stars

9,182 Reviews

bestseller

[jumbo leave-in molecular repair hair mask](/content/products/jumbo-leave-in-molecular-repair-hair-mask-100ml "View Jumbo Leave-In Molecular Repair Hair Mask 100mL"/index.html) 4-minute leave-in treatment to reverse hair damage - now in an exclusive jumbo size

Add to bag -

Regular price $120

Regular price $0 Sale price$120

Load PreviousLoad previous page of products

You’ve viewed 9 of 9 products

Load MoreLoad more products

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.