K18 Leave-In Molecular Repair Hair Mask is a 4-minute leave-in peptide treatment designed for hair damaged by bleach, color, chemical services and heat styling. Powered by patented K18PEPTIDE, this molecular repair mask helps reconnect broken polypeptide chains and disulfide bonds to support stronger, smoother and more resilient hair. Unlike traditional deep conditioning masks that mainly coat the outer cuticle, K18 works deeper within the hair structure to help repair damage and improve the look and feel of compromised strands. The lightweight cream formula is suitable for all hair types, including straight, wavy, curly and coily hair. It helps improve manageability, softness, smoothness, bounce and frizz control without adding a heavy finish. How to use: Shampoo and skip conditioner. Towel-dry hair thoroughly. Apply 1–3 pumps depending on hair length and density. Wait 4 minutes. Do not rinse. Style as usual. Use for 4–6 consecutive washes after bleaching, coloring, chemical services or heat damage, then as needed.
