K18's Leave-In Molecular Repair Hair Mask is the four-minute treatment that has hair lovers obsessed. Its K18Peptide works inside the hair to help it look stronger, softer and bouncier, even after colour, bleach and heat styling. Shampoo, towel-dry, apply, wait four minutes, then style as usual. No rinsing. The results look and feel like a reset for your hair, with more movement and shine. It's a salon favourite you can use at home, and colour-treated hair especially loves it. Healthier-looking hair in four minutes? That's why it lives up to the buzz.

“Immediately after I use it, my hair feels extremely soft. Like, shockingly soft.” — Cosmopolitan
Hair creators and colourists call it a must-have for blondes and heat stylers, with before and afters everywhere.
Reviewers are smitten with how soft, bouncy and healthy their hair looks. Many say it transformed their colour-treated hair.
Key Ingredients -
K18Peptide
How to Use -
Shampoo, skip conditioner, towel-dry, apply a small amount, wait four minutes, then style. Don't rinse. Pro move: focus on mid-lengths and ends where hair needs it most.
Good to Know -
Pro tip: use it after every colour or bleach session and on heavy styling weeks for hair that looks and feels its best.
FAQs
Do I need conditioner?
Skip conditioner before applying so K18 can work its magic.
Do I rinse it out?
No! It's leave-in. Just wait four minutes and style.
Is it good for coloured hair?
It's a favourite for colour-treated and bleached hair.
K18 Leave-In Molecular Repair Hair Mask: a four-minute, no-rinse treatment for soft, strong, bouncy-looking hair.




