mini leave-in molecular repair hair mask
Mini retail size of our 4-minute leave-in treatment to reverse hair damage.
A retail-sized version of the K18 mask helps to maintain your hair strength and elasticity in-between salon appointments. This leave-in treatment mask for all hair types that reverses damage in 4 minutes. Patented peptide technology works to repair damage from bleach + color, chemical services, and heat* — restoring strength, softness, smoothness, and bounce to hair.
20+ billion TikTok views 🔥
Mini retail size of our 4-minute leave-in treatment to reverse hair damage.
A retail-sized version of the K18 mask helps to maintain your hair strength and elasticity in-between salon appointments. This leave-in treatment mask for all hair types that reverses damage in 4 minutes. Patented peptide technology works to repair damage from bleach + color, chemical services, and heat* — restoring strength, softness, smoothness, and bounce to hair.
20+ billion TikTok views 🔥
Mini retail size of our 4-minute leave-in treatment to reverse hair damage.
A retail-sized version of the K18 mask helps to maintain your hair strength and elasticity in-between salon appointments. This leave-in treatment mask for all hair types that reverses damage in 4 minutes. Patented peptide technology works to repair damage from bleach + color, chemical services, and heat* — restoring strength, softness, smoothness, and bounce to hair.
20+ billion TikTok views 🔥
more to know
Takes damage repair further – biomimetic peptide seamlessly fits in and reconnects broken polypeptide chains at the molecular level. As a result, disulfide bonds are also reconnected for reinforced strength along the length + width of hair—offering comprehensive, lasting repair
Restores hair from even extreme damage - by working at the innermost layer of the hair, core strength and elasticity are renewed for strong, smooth, bouncy hair
Delivers immediate and lasting results – hair is repaired from the first use and lasts past your next wash, for ongoing reparative benefits
Simplified repair - convenient, leave-in formula works in just 4 minutes, with no extra rinse required
Works on all hair types – because K18PEPTIDE™ works on a molecular level (where all hair is the same), this product is effective on all hair types and with every service
key benefits
K18PEPTIDE™ is a biotech-developed peptide that mimics hair's structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during bleaching, color and chemical services, and heat*.
pH-optimized (5.0-6.0) to help minimize cuticle swelling + put hair proteins in their most resilient state after salon service or shampoo
Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits.
Vegan, color-safe, cruelty-free
how to use
Shampoo, do not condition. Towel-dry thoroughly
Apply 3-9 pumps of K18 leave-in molecular repair hair mask based on your length and density, starting at the ends and working up towards the roots
Let sit for 4 minutes. Do not rinse out
Comb, add product + style as usual. Use for 4-6 washes post-salon service, then as needed
dos and don'ts
DO clarify before K18 if you have a heavy product user (demineralize for mineral + metal buildup)
DO apply on clean, damp hair
DO wait the full 4 minutes before combing or styling
DO add whatever styling products you love after the 4 minutes
DON'T use conditioner before applying K18 mask (you can apply after the 4 min but most find they don’t need it)
DON'T overdo it—less is more
DON'T rinse it out
ingredients
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.