The K18PEPTIDE™ works at the innermost layer of hair, reconnecting polypeptide chains and disulfide bonds broken during bleaching and chemical services. By addressing these damage sites at the innermost layer of hair, core strength and elasticity are renewed for strong, smooth, bouncy hair—even after the most extreme damage done in the salon.

Damage is ongoing

Send the K18 retail sizes home with your client to keep hair health going, make services last longer, and maintain hair health in between appointments + the K18 PRO service.

• Powered by the patented K18PEPTIDE™, engineered over 10 years in a biotech lab to work on the molecular level to rebuild hair from the inside out in just 4 minutes.
• Because the K18PEPTIDE™ works at the molecular level, it works on every single hair type
• Clinically proven to reverse hair damage from: Bleach + Color, Chemical Services, Heat
• Restores strength, softness, smoothness, and bounce
• Immediate + progressive results
• Vegan, color-safe, cruelty-free
• With just one salon treatment using the K18 PRO service (PRO mist + PRO mask), hair is restored up to:

91% original strength*
94% original elasticity*

*Results observed in a clinical study while using mist and mask as part of a bleaching treatment. Results may vary depending on hair type, quality, and history.

1. Shampoo, do not condition.
2. Towel-dry thoroughly.
3. Begin with 3 pumps of K18 leave-in molecular repair hair mask, only add more as needed depending on length, thickness, and condition. Apply all over, one pump at a time, maximum dosage is 9 pumps.
4. Let sit for 4 minutes. Do not rinse out.
5. Then comb + style as usual (fine to add heat protectant or styling product now).
6. Use for the first 4-6 washes, then as needed.

• DO clarify before K18 if your client is 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

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.