K18 Leave-In Molecular Hair Mask - .17 oz

If I could put one repair product in every client’s hands, it would be this one. The K18 leave-in mask works at the molecular level to reverse damage from color, lightening, heat, and time — in about four minutes, with no rinsing. It isn’t a coating that washes out; it actually repairs the bonds inside the strand, so hair feels stronger and softer the more you use it.

On clean, towel-dried hair, skip the conditioner, work it through, wait four minutes, then style as usual. We use K18 behind the chair at Reverie Salon in River North after color and lightening services.

This single-use packette is the easiest, lowest-commitment way to try the treatment that does the most before you move up to a full tube.