The K18 Leave-in Molecular Repair Hair Mask repairs and strengthens damaged hair with its patented bioactive peptide. By penetrating deeply into the hair shaft and binding to the keratin, it creates stronger and more resilient hair fibers. With just a four-minute application time, this mask restores the natural strength and elasticity of hair, resulting in healthier-looking and feeling locks.

How To Use: Apply a small amount of the mask to damp or dry hair, focusing on the mid-lengths and ends. Leave it in for four minutes before styling as usual.