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Where science meets hair care, K18 believe that to truly care for our tresses, we must understand the biology behind it. Swapping out the lab coat and test tubes for a salon chair and hair tools, this brand is here to help you transform your locks from the comfort of your bathroom! Packed with a plethora of beneficial ingredients, namely their uniquely patented K18Peptide™, their hero product is a game-changer - or should we say mane-changer - that promotes healthier-looking hair. Can't think of a way to restore your hair's elasticity and bounce? Cue: the Leave-In Molecular Repair Hair Mask...
Does your hair need some TLC and a little... shaping? To the salon! Treat your locks to this at-home, leave-in formula that's infused with their unique patented K18Peptide that works on molecular level to repair even the most extreme damage! Let's pop on our lab coats for a quick second and give you the science-y low-down on this Leave-In Molecular Repair Mask. The patented peptide boasts a unique sequence of amino acids through the struggling strands to reconnect. The result? Stronger, softer, smoother and bouncier hair that's full of life. Boasting salon-like results in just 4 minutes, this concentrated formula is brimming with moisture magnets and protectors to leave your hair feeling prepped, primed and voluminous. Did someone say luscious locks alert?
Shampoo and rinse. Do not use conditioner, towel dry hair thoroughly, apply Leave-In Molecular Repair Mask and wait 4 minutes. Do not rinse out. After 4 minutes, apply styling products if desired and dry/style as usual.
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.
- K18 Biomimetic Hairscience
Frequently Bought Together



Total Price: 101.14€
Add both to basket
K18 Leave-in Molecular Repair Hair Mask (Various Sizes)
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79.10€
In stock
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Where science meets hair care, K18 believe that to truly care for our tresses, we must understand the biology behind it. Swapping out the lab coat and test tubes for a salon chair and hair tools, this brand is here to help you transform your locks from the comfort of your bathroom! Packed with a plethora of beneficial ingredients, namely their uniquely patented K18Peptide™, their hero product is a game-changer - or should we say mane-changer - that promotes healthier-looking hair. Can't think of a way to restore your hair's elasticity and bounce? Cue: the Leave-In Molecular Repair Hair Mask...
Does your hair need some TLC and a little... shaping? To the salon! Treat your locks to this at-home, leave-in formula that's infused with their unique patented K18Peptide that works on molecular level to repair even the most extreme damage! Let's pop on our lab coats for a quick second and give you the science-y low-down on this Leave-In Molecular Repair Mask. The patented peptide boasts a unique sequence of amino acids through the struggling strands to reconnect. The result? Stronger, softer, smoother and bouncier hair that's full of life. Boasting salon-like results in just 4 minutes, this concentrated formula is brimming with moisture magnets and protectors to leave your hair feeling prepped, primed and voluminous. Did someone say luscious locks alert?
Shampoo and rinse. Do not use conditioner, towel dry hair thoroughly, apply Leave-In Molecular Repair Mask and wait 4 minutes. Do not rinse out. After 4 minutes, apply styling products if desired and dry/style as usual.
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.
- K18 Biomimetic Hairscience
Frequently Bought Together



Total Price: 101.14€
Add both to basket
Customer Reviews
Top Customer Reviews
Thanks for sharing your thoughts! Please remember that results will vary from person to person. We're proud to say that all customer reviews are independent, authentic and do not represent the views of Cult Beauty or The Hut Group.
Tried and true - it actually does repair serious damage
Everyone's said it already but I can't rave about this enough. Recently I got a strand of hair (front piece/bangs) so severely damaged from bleach, sun and water exposure that it almost completely changed texture - my entire hair is straight/lightly wavy, and that particular strand got rough, dry, curly and frizzy and not even a blowout would make it smooth. I started the recommended treatment cycle with K18 and, after a few weeks now, my hair is almost completely back to normal. I'm still quite shocked with the results - I've never seen a product perform at this high level and would NEVER expect that level of damage to be reversed. Yes this is expensive but if you need serious damage repair, this will actually deliver.
Report this reviewAmazing, even for virgin hair
I have wavy, thin, virgin hair, almost never use hot tools, never had my hair dyed and still, my hair looks brittle and frizzy all the time. My curly products fade away after a few hours, and I can't use the stronger ones because they make my hair look greasy and weighted down. This product is amazing. My hair has a more defined shape, and helps my curly products work better. Never looked so good and repaired. You can have virgin hair and still be damaged, this product can help you in this case too. It's very pricey, but it's worth it.
Report this reviewMUST PURCHASE
Wow. Wow. Wow. Never have I ever had more shine and healthier hair. After months of using this product I can say with guarantee if you’re on the fence, pull the trigger! Some helpful tips: Before using activate the product by rubbing btw your hands so that the color of the product is white. Apply all over your hair and let sit for 4 minutes. DO NOT USE CONDITIONER AFTER SHAMPOOING
Report this reviewExpensive but love it
This changed my damaged hair, love it, it is on the pricier side.
Report this reviewK18 leave in molecular repair hair mask
Does not multiply in hands like the instructions suggest- very disappointing but ordered the 15ml bottle and works a amazingly.
Report this reviewMy new fav hair mask
I only give it 4 stars because of the price. I can definitely see my hair getting better.
Report this reviewNothing special
This mask made my hair feel a bit heavy/sticky after blowdrying. I’ve only used it a few times now so will see what the results are in the upcoming weeks. However, there are much better masks out there for a cheaper price.
Report this reviewGood
I’m a fan of the serum k18.. the shampoo I’m still working out if it actually works… so far so good
Report this reviewGood but expensive
Good results with minimal effort (I get the same results from Olaplex nr 3 but have to leave that one in quite a bit longer). However price is pretty steep. For the people who say it doesn’t do enough for them; try emulsifying the product in your hands first before applying. I’ve been told you sort of need to activate it before putting it in your hair.
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