Get 15% off your first order Sign up for email exclusives Earn Cult Status Points
Get up to 15% OFF your first haul with code FIRST15
K18 Biomimetic Hairscience

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

You'll earn 27 Status Points with this product

Discover Cult Status

RRP: 33.90€ Current price: 27.12€

Save 6,78 € ( 20% Off )


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

RRP: 33.90€ Current price: 27.12€

Save 6,78 € ( 20% Off )

Total Price:

62,38 €

Other Customers Bought

Customer Reviews

4.42 stars out of a maximum of 5

5 stars rating 396 reviews

4 stars rating 104 reviews

3 stars rating 61 reviews

2 stars rating 13 reviews

1 stars rating 20 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.

not worth the price

3 stars out of a maximum of 5

it's a good mask but definitely not worth the price. I did not notice remarquable results. It's just a nice mask. Also i don't like the fact that you have to use it after your shower. like not rinse it. i'd rather use a hair mask in the shower and then rinse it but that's personal preference

by Sarah Verified Purchase

Was this helpful?

Really great

5 stars out of a maximum of 5

Yes, it's expensive but it's really good. At first you need to use it 6 washes in a row, and after that you can use it once a week or even less. Don't use much, one pump is plenty for my hair, which is very long and thick. It gives actual HEALTH back to the hair. Not just shiny hair on the days you've used it, but actual repair and sturdiness to the hairs. Great, will keep repurchasing time after time. Also a lot less faff compared to olaplex N3, which you need wet hair for and need to rinse after. This is quick, easy after the shower. Perfect.

by Merrr Verified Purchase

Was this helpful?

I think it is working

4 stars out of a maximum of 5

It seems to be gradually working: I have used it 6 times initially and continue using it weekly for now (2 months now). I use this along with conditioner and a Living Proof triple bond leave in (which I started earlier, and felt the immediate effect there) . Adding K18 to the routine did not actually make a *huge* immediate difference in terms of how much stronger my hair strands feel after application, but I think this is due to the amount of accumulated damage I have (colouring and heat, years long hair fall out), I need more time to grow out the biggest damage. Fingers crossed.

by Olga Verified Purchase

Was this helpful?

it’s sooo good

5 stars out of a maximum of 5

my hair was so dead it saved it its sooo soft and shiny now

by mirayaxxx21 Verified Purchase

Was this helpful?

Staple Product

5 stars out of a maximum of 5

K18 immediately makes your hair very smooth, shiny, moisturized, soft and smooth. Can't live without

by Olivia Verified Purchase

Was this helpful?

Healthy Hair

5 stars out of a maximum of 5

This is a staple for healthy hair. Love using K18, a miracle worker.

by RepurchaseOrReplace Verified Purchase

Was this helpful?

Not worth it

3 stars out of a maximum of 5

I've used it a more than 5 times now and I cannot see a huge difference, the only thing I notice that it does seem to tame my frizz slightly, for reference I have curly super dry frizz prone hair with split ends and breakage.

by Sara Verified Purchase

Was this helpful?

Good but not worth the price

4 stars out of a maximum of 5

I like the results bit but you can get the same effect with olaplex with a cheaper price

by Ivy Verified Purchase

Was this helpful?

love it!

5 stars out of a maximum of 5

I use the instructions as written and I really saw results from the first try.

by Emma Verified Purchase

Was this helpful?

love it

5 stars out of a maximum of 5

i hope this saves my hair its my last hope

by mirayaxxx21 Verified Purchase

Was this helpful?