K18 sells peptide hair care products to reverse hair damage.

K18 earns strong reviews for visibly repairing damage and boosting shine and softness—especially on bleached, heat-styled, or frizz-prone hair—yet feedback is mixed on the leave-in mask’s results for healthy hair. Reviewers praise the lightweight oil, innovative AirWash dry shampoo, and fast, non-greasy finish, while noting drawbacks like potential heaviness or clumping if overused, harsh shampoos for some, residue and limited longevity from AirWash, and occasional scent and buildup concerns.

Chelatingmist

Molecularleavein

K18mask

Shampoo 

Conditioner

Hair Oil

Peptide Prep

Leave In Mask

Damage Shield Protective Conditioner

Jumbo Leave in Molecular Repair Hair Mask

K18 x Future Society Limited Edition Scent Mask

Molecular Repair Hair Oil

Mini Damage Shield Protective Conditioner 

Triplebright Oxidation Defense Purple Shampoo 125ml

Salon Blowout at Home

Damage Shield Wash Care Set

Leave In Molecular Repair Hair Mask 50ml

AstroLift Reparative Volume Spray 118 ml

HeatBounce Conditioning Heat Protectant

Airwash Dry Shampoo

Mini AirWash Dry Shampoo 47 ml

Damage Shield pH Protective Shampoo

Peptide Prep Detox Shampoo

Molecular Repair Hair Oil -30ml

About K18