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.
Believe the hype
I don’t feel like I can add anything that’s not already out there about this product but I can say if you are blonde, you need this. A real game changer which has given my fine, damaged hair a new lease of life
by Sarah Verified Purchase
Was this helpful?
This genuinly did work
I did end up buying full size after this, k18 really does work especially with bleached hair, however it’s expensive so I do use this really sparingly
by Lois Verified Purchase
Was this helpful?
It’s so good but pricey
This works I’ll tell u it really does work just won’t buy it agian for a while due to price
by Lois Verified Purchase
Was this helpful?
Yes it's holy grail for a reason
Wanted a product to realistically help save my hair as I'm trying to grow it longer. It's also really useful for that in-between period just before you need to have your haircut, because it will show you that perhaps your hair is very dry and not dead. Also don't use conditioner after showering / before applying for best usage!
by Thee Verified Purchase
Was this helpful?
The best
The best hair care product I have used, leaves hair soft and silky.
by Scarlett Verified Purchase
Was this helpful?
Amazing
Best thing iv ever used for my hair, can't believe how silky smooth ny hair feels after one use,
by Chantelle Verified Purchase
Was this helpful?
Mediocre
I think I'm the only person in the world who isn't overly bothered by this. It doesn't really do much for my hair at all. For the price I was expecting amazing results but i have used cheaper things that work better
by poppy Verified Purchase
Was this helpful?
The best
There are no words for how good this is!! Will repurchase however I think the price could be better
by Denisa Verified Purchase
Was this helpful?
Love just expensive
Such a great product just so expensive :(
by Emily Verified Purchase
Was this helpful?
Love
This is my second bottle I generally see a difference. Just wish it was cheaper
by Emily Verified Purchase
Was this helpful?