Leave-in Molecular Repair Hair Mask - Treatment for Damaged Hair

Holy grail!!!

I’ve only used this 3 times at the time of writing this review but I’ve already noticed such a big difference! My hair feels softer and healthier but also looks it! I’ve had so many compliments on the condition of my hair. Can’t wait to continue using it and see what else it can do!!

Effective, but Expensive

This is my first time trying K18, and I can definitely feel the difference—it’s really good. However, there’s a big downside: it’s quite expensive for such a small 15ml bottle. I finished it in just four uses and will need to buy another bottle to complete the treatment course. While it works well, I think it's still important to supplement with vitamins for overall hair health. Don’t expect miracles overnight or after just a few uses—it’s a gradual process.

Lather first!! :)

Make sure you’re putting it on your hands and rubbing until it lathers before putting on. Made SUCH a difference. At first I put it directly on my hair and my hair felt like straw after.

Best hair product

Really makes a difference to my hair . I never write reviews but this product is amazing. Difference noticed in first use

I don't recommended.

I don't recommend this product to anybody or at least people who have thin/fine hair like me. I tried this product and sadly it let me down as I saw it being so popular on social media, and did my research on it. I bought it to try obviously and it made my hair worse. As eventually it got drier and oddly crispy as I used it correctly for it's intended use and for some odd reason that was the result. In fact, the product is support to save and help dry and damage hair, but in fact did not work for me sadly to say.

No thanks

Made my ends look horrible…I used this product as the directions said to…when my hair dried my ends were tangled, crispy, frizzy, and extremely dried out.

Soft hair immediately!

I was skeptical about the skipping conditioner part, but I’m genuinely shocked at home soft and shiny this has made my hair! Definitely will buy again and again.

Dried out my hair

This completely dried out my hair. The directions say to not use conditioner before using. This made my hair brittle and like straw. It would get tangled more, and in turn I felt like it was breaking more. My hair felt so nasty until my next wash. You are not supposed to wash this out, so I don't know how to counteract the dryness. I will not be using it long enough to see if it works.

A definite life saver!!

After using the K18 Leave-In Molecular Repair Mask for several months, I can confidently say it has made a huge difference! I regularly highlight my hair and spend a lot of time outdoors in strong UV, which can be really harsh, but this product has kept my hair hydrated and significantly improved my dead ends. It’s been a game-changer for maintaining healthy, strong hair despite the damage. If you haven’t tried it yet, you should definitely add this to your routine!

Dry tangled mess 👎

Made my hair incredibly dry and tangled. Lost hair brushing it and trying to get the knots out.

Hair saviour

Amazing hair product has really fixed my dry bleached hair !

Skip it

After using this, my scalp became really really itchy, like to the point where I couldn’t stand it and I had to wash it out of my hair. As far as conditioning goes, it didn’t work that well either.