K18Biomimetic Hairscience Leave-In Molecular Repair Hair Mask

Excellent productJust love this creammy hair looks soft and shiny

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.

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!

I bought the mask and spray - disappointed as I felt the spray made my over processed bleach hair worse, increased breakage and the mask was clear and watery not like on the official demonstration of product, it was white and creamy even when rubbed on hands. Another customer commented on this having noticed the consistency change. No answer from K18 representatives. I believe olaplex ingredients have changed in their no 3 as it used to help my hair made it thicker and stronger, now it does nothing. Sometime I think companies like this wait until everyone is on board and then change the formula to a cheaper one? Whatever the case neither product helped my over processed bleached hair and both were extremely expensive. Coconut oil and Shea butter probably the best!

Authentic K18 products have a matte bottle finish, a specific air hole placement, and a printed lot number. This product is the real deal, as I checked all the above, and it passes!

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.

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.

Omg this is an absolute game changer it actually does what it says on the box , I’ve used everything including olaplex but nothing comes close to this used it once and could see and feel the difference my hair is badly frazzled from over bleaching apart from getting it cut short nothing I could do about it , I used 2 blobs as I have bobbed hair put it through all of my hair left it for the 4 mins like it says before I brushed and styled normally , yes it’s mega expensive but well worth it if your hair is as damaged as mine highly recommend this product ps dont buy it if it advertised for anything less than its original price which is £50 the cheaper ones are not the real deal I found that out the hard way 👍