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K18

K18 is the hair repair brand that changed the game. Its patented K18Peptide works inside the hair to repair damage from bleach, colour and heat. Our bestseller is the K18 Leave-in Molecular Repair Hair Mask, used in just four minutes after shampooing with no rinse. Fans also love the K18 Airwash Dry Shampoo, Molecular Repair Hair Oil and Peptide Prep Detox Shampoo.

K18 - Cloud 10 Beauty

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K18 is the hair repair brand behind the cult Leave-in Molecular Repair Hair Mask. Its patented K18Peptide works inside the hair to repair damage from bleach, colour, chemical services and heat, rather than just coating the surface.

How K18 works

Most conditioners and masks smooth the outside of the hair. K18Peptide is designed to reach inside the hair and repair the keratin chains that damage breaks, so hair regains its strength, softness and bounce. The mask takes four minutes after shampooing and is left in, with no rinse.

How to use the K18 mask

Which K18 product is right for you?

Looking beyond K18? Explore more treatments for damaged hair.

K18 FAQs

Which K18 product should I start with?

If your hair is damaged, start with the Leave-in Molecular Repair Hair Mask, and cleanse first with the Peptide Prep Detox Shampoo.

What's the difference between the Peptide Prep Detox Shampoo and the Damage Shield Shampoo?

Peptide Prep Detox is a deep-cleansing shampoo that clears build-up, so it suits use before your mask. Damage Shield is the everyday option, with a matching conditioner.

What is K18 Airwash Dry Shampoo?

Airwash is K18's dry shampoo. It refreshes hair between washes while helping to protect it.

Is K18 good for bleached hair?

Yes. K18 was designed to repair damage from bleach, colour, chemical services and heat styling.