K18
Leave-In Molecular Repair Hair Mask
The cult four-minute leave-in mask with K18Peptide that repairs damage from bleach, colour, chemical services and heat.
Price£19.90
Ref. price
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Price includes VAT · Free UK delivery
What is the “Ref. price”?
Ref. price is what a major UK beauty retailer charged for the same product, size and shade when we checked on 26 October 2026. It is not a previous price of ours.
In stock · New and unopened SKU K18-YC4H75
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- Free UK delivery on every order
-
Delivered in 2–5 working days - 14-day returns on unopened products
- Repairs damage in four minutes
- Restores strength and bounce
- Softer, smoother hair
- Vegan and cruelty-free
Description
K18's patented peptide is sized to reach deep into the hair and reconnect broken keratin chains – the ones responsible for strength and elasticity.
Used after shampooing, it repairs damage in four minutes and restores strength, softness, smoothness and bounce. No rinsing, and results build with every use.
Key ingredients
- K18Peptide – repairs damage from bleach, colour, chemical services and heat
How to use
Shampoo (don't condition), towel-dry, then work a small amount through damp hair. Leave for four minutes and style as usual – don't rinse.
Details
- Type: Leave-in repair mask
- Hair type: All types and textures
- Concerns: Damage, breakage
- Colour-safe: Yes
Delivery & returns
Free delivery to UK addresses on every order, delivered in 2–5 working days. You'll receive a tracking link by email as soon as your order is on its way.
Changed your mind? You can cancel within 14 days of delivery and return unopened products in their original packaging. Faulty products are always covered.
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