K18 Leave-In Mask 15ml
Give damaged hair a reset with the K18 Leave-In Mask, a lightweight leave-in treatment that works deep inside the hair fibre to restore a healthy look and feel. Powered by patented K18Peptide technology, this clever mask travels into the inner layers of the hair to reconnect broken keratin chains and support stronger, smoother, more resilient strands.
Designed for hair that’s been stressed by bleach, colour, chemical services or heat styling, this treatment helps bring back softness, elasticity and bounce while maintaining results wash after wash. The convenient leave-in formula gets to work in just 4 minutes, so you can repair while you style without adding extra steps to your routine.
Benefits
- Leave-in treatment mask that helps repair the look of damaged hair
| Product Details | Value |
|---|---|
| Volume | 15ml |
| Formulation Type | Leave-in mask |
| Active Technology | K18Peptide |
| Application Time | 4 minutes |
FAQ
How long does the K18 Leave-In Mask take to start working?
The K18 Leave-In Mask starts working in just 4 minutes after application.
Can this mask be used on coloured or chemically treated hair?
Yes, it is specifically designed for hair that has been stressed by bleach, colour, chemical services, or heat styling.
Does the mask provide long-lasting results?
Yes, it helps maintain softness, elasticity, and bounce wash after wash.

Sally Carr –
I’ve used this mask on my bleached hair for a few weeks now. It feels lighter than other leave-ins and my hair has noticeably improved in texture. After just one use, it was smoother and less frizzy. I apply it before styling and don’t need to wash it out. Works well with my daily routine.
Madeleine Wilkins –
My hair has been damaged from frequent heat styling and colouring. After using the K18 mask, it feels more resilient and less brittle. The 4-minute application time is convenient, and it doesn’t leave a greasy residue. I’d recommend it to anyone with damaged hair.
Mary Black –
I tried several leave-in treatments before finding this one. The K18Peptide technology really makes a difference. My hair has more bounce and feels stronger. It’s easy to apply and works well even on fine hair. No clumping or heaviness.