Free UK shipping over £25 15% off your app order Sign up for email exclusives Earn Cult Status Points
Enjoy £10 OFF when you spend £50, £20 OFF £100 and £30 OFF £120
K18 Biomimetic Hairscience

K18 Biomimetic Hairscience Leave-in Molecular Repair Hair Mask 15ml

You'll earn 30 Status Points with this product

Discover Cult Status

£30.00

Or 4 interest free payments of £7.50 with


In stock | Usually dispatched within 24 hours

Frequently Bought Together

K18 Biomimetic Hairscience Leave-in Molecular Repair Hair Mask 15ml

This item

K18 Biomimetic Hairscience Leave-in Molecular Repair Hair Mask 15ml

£30.00

Total Price:

£57.00

Other Customers Bought

Customer Reviews

4.56 stars out of a maximum of 5

5 stars rating 945 reviews

4 stars rating 246 reviews

3 stars rating 85 reviews

2 stars rating 25 reviews

1 stars rating 22 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.

Good

4 stars out of a maximum of 5

It’s good but I’m not sure it makes a huge difference to my hair, I’m trusting that it’s doing something that I can’t see lol

by Lisad Verified Purchase

Was this helpful?

Bleached hair’s hero

5 stars out of a maximum of 5

I beach my hair ever couple of months and if I use this for the first few washes after my hair feels so soft again. Before using this it would feel frazzled so this is a life(hair)saver

by Becky Verified Purchase

Was this helpful?

Best ever hair product

5 stars out of a maximum of 5

This is the best hair product on the market! I bleached my hair a while ago and this repair mask has transformed my hair back to what it was before the bleach damage! It’s amazing

by Nxhrr Verified Purchase

Was this helpful?

YES

5 stars out of a maximum of 5

feel like my hair is already improving. still gonna continue using to get better results but it's promising.

by sam Verified Purchase

Was this helpful?

Hair feels amazing

4 stars out of a maximum of 5

Hair feels amazing after using and a little goes a long way but it is quite a small bottle

by Mvx Verified Purchase

Was this helpful?

Prefer over olaplex

4 stars out of a maximum of 5

Olaplex doesn’t work well in my hair and this seems to help repair it fairly well..: use it every 3/4 washes and keeps the bleach damage down

by Shiv Verified Purchase

Was this helpful?

Would not be without!

5 stars out of a maximum of 5

I have been using this for a few years at this point and although initially I did not know how to use it properly (I don’t think K18’s instructions are overly clear) and did not like the product, my thoughts are now completely different and I would not be without it in my routine! I apply after shampooing for four minutes and then follow up with conditioner.

by Lottie Verified Purchase

Was this helpful?

Great for bleached hair.

4 stars out of a maximum of 5

This is a great product for repairing hair. I noticed a massive difference in my hair after about the fourth use. A little tip… you can wash it out after the activation period of 4 minutes and apply conditioner this is because, once activated the k18 peptide is absorbed into the hair and will provide the benefits even when washed out. I find doing this is less drying on the hair.

by Rose Verified Purchase

Was this helpful?

Noticeable difference

4 stars out of a maximum of 5

I have really long fine hair which is prone to breakage and this works so well for me. It’s instant results and so soft and shiny. Taken a star off because it’s so so expensive but it is probably worth it if you have damage!

by Remi Verified Purchase

Was this helpful?

Immediate result

5 stars out of a maximum of 5

Received trial vial from hairdresser, results were so immediately noticeable-( shine and smoothness ),that ordered from cult. A considered purchase price wise, however- results merit the cost.

by Gaily Verified Purchase

Was this helpful?