Leave-In Molecular Repair Hair Mask

Hair mask · Hair

K18's leave-in hair treatment, applied to washed, towel-dried hair and left in for four minutes without rinsing. What the brand says: its K18PEPTIDE works on a molecular level and is clinically proven to repair damage from bleach, colour, chemical services and heat, restoring strength, softness, smoothness and bounce. Sizes: 50 ml full size; a 15 ml mini and a 100 ml jumbo are also sold Price: $75 (50 ml) at k18hair.com. Prices checked 19 October 2026.