K18 Leave In Molecular Repair Hair Mask 15ml

Restore hair from the inside out with the K18 Leave-In Molecular Repair Hair Mask – now available in a travel-friendly 15ml size.

This award-winning treatment goes beyond surface-level repair. Powered by K18Peptide™ technology, the mask travels deep into the inner layers of the hair to reconnect broken keratin chains caused by chemical services, heat, and environmental stress. In just 4 minutes, it reverses damage and restores strength, softness, smoothness, and bounce — all without rinsing.

Perfect for all hair types and textures, this lightweight leave-in works wonders after bleach, colour, heat styling, or simply as part of your weekly haircare routine. No fillers. No heavy buildup. Just scientifically-proven repair and long-lasting results.

Vegan. Colour-safe. Cruelty-free.

1. Shampoo, do not condition. Towel-dry thoroughly.
2. Apply 3-9 pumps of K18 leave-in molecular repair hair mask based on your length and density, starting at the ends and working up towards the roots.
3. Let sit for 4 minutes. Do not rinse out.
4. Comb, add product + style as usual. Use for 4-6 washes post-salon service, then as needed

Takes damage repair further – reconnects both polypeptide chains (and as a result, also reconnects disulfide bonds) for strength along the length + width of the hair – offering comprehensive, lasting damage repair.

Restores hair from even extreme damage – by working at the innermost layer of the hair, core strength and elasticity are renewed for strong, smooth, bouncy hair.

Delivers immediate and lasting results – hair is repaired from the first use and lasts past your next wash, for ongoing reparative benefits.

Simplified repair – convenient, leave-in formula works in just 4 minutes, with no extra rinse required.

Works on all hair types – because K18PEPTIDE™ works on a molecular level (where all hair is the same), this product is effective on all hair types.