K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask

Why did you choose this product over others?:I recently had a chemical perm and color treatment that left my hair severely damaged. After just one use of this product (shampooed, towel-dried, applied, left in, and then blow-dried), I was amazed at the transformation. My hair looked and felt healthy, shiny, and revitalized—almost like the damage had never happened. Highly recommended!

My hairdresser recommended this as I used my GHD straighteners on damp hair and frankly ruined my hair. My hair was dull, fragile and looked absolutely dreadful until she used various products on my hair including this product and revived what I thought was a lost cause! I’ve been using this product at home and at last my hair really looks amazing. A little expensive but worth every penny as my hair is extremely long and just one pump of product is enough for the entire length of my hair. Honestly, this has been a life saver for my hair.

I love k18 it really helped sort my hair out last year after years of colour, easy to use you dont need much, oh I also recommend not to brush your hair until after you have worked this into your hair, it makes brushing a lot easier, especially as you can't use conditioner, great quality and makes my hair shine

This is not real K18 . It has a very strong chemical smell . I know because I got “ real “ K18 from my hairdresser.

Well, I have fine, medium length hair and I was using two pumps of this as per the guidelines.I only started seeing the magic of this stuff when I started using three pumps and then applying a leave-in hydrating product after the 4 minute wait.I damaged my hair with heated styling tools but K18 had my hair looking healthy again.

This has transformed my hair. I have very fine and fragile hair that breaks easily. I have never been able to grow it long because it gets so broken and shaggy. With this I have been able to grow my hair longer than usual and it gives an amazing shine. I will still never be able to have very long hair but I have actually never used a product that works as well as this. You don't use conditioner with this, and a small amount goes a long way. It is VERY expensive but when you have hair like mine it is worth it. I just put it on the ends and use a tangle teaser to comb through and let it air dry. Once it dries my hair feels a little crunchy at first but once I brush it through again it feel silky soft and shiny. It's definitely a five star product in terms of quality and ingredients but I've knocked a star off because of the high price, which also recently went up.

Has worked to significant reduce my hair breakage and now I see length retention. I still condition my hair (non silicone conditioner) after washing and then I put this on for 4-5 minutes. For me it still works incredibly well this way and I don’t suffer hair tangling or dryness. It’s my go-to leave in conditioner before I use keratase. I have 3c/4a fine, very soft hair.

I’ve used K18 before, purchased directly from their website and I’m not certain the one I’ve been sold here is legitimate.When using previously I noticed an instant improvement in my hair with every use, and here I’ve not noticed any difference at all.I could be wrong but fear I’ve been sold a dupe.