K18 Biomimetic Hair science Leave-In Molecular Repair Hair Mask 5 ml / 0.17 fl. oz

This leave-in treatment mask does cleanup duty after damage caused during bleaching, chemical services, and heat. Powered by the K18PEPTIDE™ to reconnect broken polypeptide chains and disulfide bonds to renew strength and elasticity in just 4 minutes. 11+ billion TikTok views 🔥 How to use: Shampoo, do not condition. Towel-dry thoroughly. Begin with 1 pump of K18 PRO mask and add more as needed depending on length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time, maximum dosage is 3 pumps. Let sit for 4 minutes. Do not rinse out. Style as usual.