K18 Leave-in Molecular Repair Hair Mask 5ml is a at-home leave-in treatment infused with our patented K18Peptide that works to repair even the most extreme damage, renewing hair to its most youthful, healthy state. 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 moisturising 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. Benefits: Heals damage from bleach, color, chemical services, and heat Restores strength, softness, smoothness, and bounce Doesn’t wash away with shampoo, leaving lasting results Vegan, color-safe, cruelty-free How to Use Towel dry thoroughly. Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time. Let sit for 4 minutes to activate. Do not rinse out and style as usual. Use consecutively for 4 times, then every 2nd to 3rd shampoo.