The K18 Leave-In Molecular Repair Mask is a 4-minute treatment that reverses damage from bleach, color, chemical services, and heat. Powered by K18PEPTIDE, it restores strength, softness, and smoothness while minimizing cuticle swelling with its pH-optimized formula. The lightweight, creamy texture detangles and softens all hair types. Vegan, color-safe, and cruelty-free, it delivers lasting repair and healthy shine.

• Reconnects broken bonds for strong, lasting repair along the entire hair strand.
• Restores even severely damaged hair for renewed strength, smoothness, and bounce.
• Delivers instant results that last beyond your next wash.
• Easy leave-in formula repairs in just 4 minutes—no rinse needed.
• Works on all hair types thanks to molecular-level K18PEPTIDE technology.

1. Shampoo, do not condition. Towel-dry thoroughly.
2. Apply 1-3 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.
3. Let sit for 4 minutes. Do not rinse out.
4. Comb, add product + style as usual. Use for 4-6 washes post-salon service, then as needed.