Product Description 4-minute leave-in treatment to reverse damage. This patented bioactive peptide treatment strengthens and improves elasticity while reversing damage from chemical services, thermal styling, and mechanical styling. For all hair types. Hair like new. This leave-in mask heals and strengthens hair with lightweight moisturizing benefits to detangle and keep hair smooth and soft, without weighing it down. For best results, use every 4-6 consecutive washes following a service. how to use Shampoo, do not condition. Towel dry until damp. Begin with 1 pump of K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair, one pump at a time, from ends to roots. Let sit for 4 minutes to activate. Do NOT rinse out. Style as usual. the dos & don’ts Do use a clarifying shampoo if youre a heavy product or dry shampoo user. Do dry thoroughly with hair towel or turban before application. Do wait the full 4 minutes before styling or applying another product. DO use every 4-6 shampoos consecutively to see and feel the full results. DONT condition your hair before applying K18. DONT use too much. DONT 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.