Skip to product information
1 of 5

K18 Leave-in Molecular Repair Hair Mask Travel Size

K18 Leave-in Molecular Repair Hair Mask Travel Size


Regular price € 29.95
Regular price Sale price € 29.95
Sale Sold out

K18 Leave-in Molecular Repair Hair Mask Travel Size is a leave-in conditioning treatment for hair that works on a molecular level to dramatically reduce breakage and split ends, reduce colour fading and restore natural shine. Works in 4 minutes to clinically reverse hair damage. This trial size product allows you to fall in love with it, before purchasing the full size.

Why you need it

K18 Leave-in Molecular Repair Hair Mask is an at-home hair treatment infused with patented K18Peptide™ that works to repair even the most extreme damage, renewing hair to it's most youthful, healthy state.

This patented K18Peptide™ creates hair like new by travelling deeper into the inner layers of the hair compared to traditional repair products, to reconnect broken keratin chains, renewing hair strength, softness, smoothness, and bounce. You can feel and see the difference with the first use. This formula doesn't wash away with shampoo, leaving lasting results, healing damage from bleach, colour, chemical services and heat.


Use a clarifying shampoo if you're a heavy product or dry shampoo user to remove buildup and help the peptide penetrate and get where it needs to go. Wait the full 4 minutes before styling or applying other product.

Free From:

Vegan, Cruelty Free, Sulfate Free, Paraben Free, Phthalate Free, Silicone Free, Artificial Colour Free, Sodium Chloride Free, Formaldehyde Free.

Size: 15ml

how to use

Shampoo, do not condition so the mask will penetrate hair more effectively. Towel dry hair until damp. Start with one pump and add more as needed. A little goes a long way. Work evenly into hair, one pump at a time, starting from ends to roots. Let sit for four minutes to activate. Do not rinse out. Style as usual.

Key Ingredients

K18Peptide™ - This is the main ingredient in the hair mask, which is a bioactive peptide that works on the molecular level to repair hair damage in just 4 minutes. The K18Peptide™ is clinically proven to repair damage caused by chemical services, thermal styling, and mechanical stress. It strengthens and improves elasticity while reversing damage.

Hydrolyzed Wheat, Soy and Wheat Proteins - Proteins that helps to strengthen and repair the hair.


Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18Peptide™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.


Q: Is it safe for colour-treated hair?
A: Yes, the K18 mask is designed to be safe for colour-treated hair and can even help improve the condition and longevity of coloured hair.

Q: What makes this hair mask different from others?
A: The K18 mask uses bioactive peptides that work to repair hair at the molecular level, restoring broken keratin chains within the hair structure.

Q: Do I rinse out the product?
A: No, it's a leave-in treatment. After applying, simply style your hair as usual.

Q: Can I use other hair products after applying the mask?
A: Yes, after the mask has been left in for the recommended 4 minutes, you can style your hair using other products as desired.

Q: Will it weigh down my hair?
A: The mask is designed to repair and rejuvenate without leaving a heavy residue, making it suitable for various hair types, including fine hair.

Q: Can I use the mask on dry hair?
A: It's recommended to use the mask on towel-dried hair after shampooing for optimal results.

About the Brand

K18 uses their own patented formula,  K18Peptide™, as a scientific approach that uses biotech instead of traditional cosmetic chemistry in hair care. This formula carries amino acids inside the hair cortex to reconnect broken bonds and keratin chains, for hair like new in 4 minutes. Can be used immediately after chemical services to repair damage done during the service, and at home to keep hair in its healthiest, strongest state.

This peptide formula was discovered after a decade scanning and testing all amino acid sequences, covering the entire keratin proteome that makes up human hair DNA. This K18Peptide™ discovery is one unique sequence to bring damaged hair back to it's original, youthful state, with the key being to get inside the hair where real repair can be done.


View full details

where we hang