The K18 Leave-In Molecular Repair Hair Mask 50ml is a leave-in treatment that reverses hair damage in just four minutes using the patented K18Peptide. It works deep inside the hair to reconnect the broken keratin chains left behind by bleach, colour, chemical services and heat, restoring strength, softness, smoothness and bounce from the very first use, with no rinsing required.

Why This Hair Mask Works

Damage from lightening, colouring and heat styling breaks the keratin chains and disulfide bonds that give hair its strength. The biomimetic K18Peptide is sized to travel into the innermost layers of the hair, where it reconnects those broken chains rather than simply coating the surface. Because the repair happens at a structural level, results are immediate and build progressively over the first few uses, and they last beyond your next wash instead of rinsing away.

Ideal For

This mask is ideal for anyone with bleached, coloured, chemically treated or heat-damaged hair that feels weak, rough or over-processed. Because the K18Peptide works at a molecular level, where all hair is structurally the same, it suits all hair types and textures, from fine to coarse. It is a strong choice for salon clients and at-home users in the UAE who want to rebuild hair strength without a lengthy multi-step routine.

The formula is intentionally minimal, built around one hero active:

• K18Peptide (sh-Oligopeptide-78): a patented biotech peptide that reconnects broken keratin chains and disulfide bonds to rebuild strength and elasticity.

• Hydrolyzed Wheat Protein and Wheat Starch: help smooth the hair and improve softness and manageability.

• Tocopherol (Vitamin E): an antioxidant that helps protect the hair.

• pH-optimised base (5.0 to 6.0): keeps the cuticle in its most resilient state so the peptide can work effectively.

The mask is vegan, colour-safe and cruelty-free.

Use on freshly washed, towel-dried hair, without conditioner first.

1. Shampoo and towel-dry thoroughly. Do not apply conditioner beforehand.

2. Dispense 1 to 3 pumps depending on your hair length and density.

3. Work evenly from the ends up towards the roots.

4. Leave in for a full 4 minutes to activate, then style as usual. Do not rinse. Use for the first 4 to 6 washes, then every 3 to 4 washes to maintain.