K18 Biomimetic Hairscience Leave-in Molecular Repair Hair Mask 15ml
You'll earn 30 Status Points with this product
£30.00
Or 4 interest free payments of £7.50 with
In stock | Usually dispatched within 24 hours
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?
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.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
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.
Frequently Bought Together

This item
K18 Biomimetic Hairscience Leave-in Molecular Repair Hair Mask 15ml
£30.00
Customer Reviews
5 stars rating 938 reviews
4 stars rating 246 reviews
3 stars rating 84 reviews
2 stars rating 25 reviews
1 stars rating 21 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.
My desert island product
This product has made such a difference to my hair and cut down the length of my hair washing by so much. I love that I can just shampoo and then apply this. I use a leave in conditioner after, followed by the K18 hair oil.
by Rose Verified Purchase
Was this helpful?
Good
I like this. Makes a noticeable difference.
by Jonna
Was this helpful?
Amazing for very damaged hair
I recently bleached my hair at home (big mistake, I’m just impatient and couldn’t wait for my appointment) and I killed my hair!! My hairdresser recommended this product to me and in only 2 uses my hair is no longer crispy. It has saved my hair to the point I don’t have any breakage and my hair feels soft. My hair strands used to be like zig zags when I looked at them close up they were that damaged, now they’re back to being straight. I can’t believe how good this product is and how quickly it works.
by Amy Verified Purchase
Was this helpful?
Highly rate this
This is expensive, but has made a real difference to my hair in terms of manageability and softness. It does annoy me that you get so little product. Even though you don’t have to use much, it runs out quickly!
by Marianne Verified Purchase
Was this helpful?
It’s ok
It’s ok, although very expensive. I’m sure it would be great on very damaged hair, but I guess mine isn’t to damaged.
by Flic Verified Purchase
Was this helpful?
nice size to try it out
Love that they make this small size so you can try it out. It lasts for a few washes for medium hair. It is indeed and incredible product and truly transforming.
by Denisa Verified Purchase
Was this helpful?
Magic
I was sceptical about this and nervous die to the cost but honestly so worth it, I will never not use this now, so repairing.
by Rebecca Verified Purchase
Was this helpful?
M
Been using this hair mask for some time now you literally get salon results at home your hair will definitely feel Stronger, softer a little bit goes along way.
by M Verified Purchase
Was this helpful?
Brilliant!
A real hero product. A leave in conditioner, you only need use a very little..repairs hair and leaves it soft and manageable. Expensive, but it really does last a long time !
by Chris Verified Purchase
Was this helpful?
Hair staple
I wouldn't be without this product now, my ends are so healthy! It seems pricey but once you're past the maintenance phase, the full size lasts ages.
by Lulu Verified Purchase
Was this helpful?