Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat

I was very curious to try the K18 Leave-In Molecular Hair Mask because my hair has been through a lot: bleach, colour, and heat styling. After a few uses, I can honestly say it does make a difference, but it’s not exactly a miracle in one wash. First, it’s important to follow the instructions: shampoo, skip conditioner, towel-dry your hair, and apply a small amount. You really only need a tiny pump. The product feels light and not greasy, which I like, and it doesn’t weigh my hair down. After about 3–4 uses, my hair started to feel stronger and less brittle, especially on the ends where bleach damage is the worst. It doesn’t make the hair super silky like a traditional mask, but it improves the structure of the hair over time. My hair feels healthier and looks a bit smoother. The downside is the price for such a small bottle. Also, if you’re expecting instant softness like a regular deep conditioner, you might be disappointed because that’s not really what this product is designed to do. Overall, it’s a very interesting treatment for damaged hair and I can see why it’s popular. It takes consistency, but it does help improve the strength of over-processed hair

I have used this product after 4 washes so far and even after the first use my hair looked and felt in much better condition. It now feels smoother and looks so much better. I have tried so many products to help my thinning, fine, frizz prone hair but most just add oil and make my already oily scalp more oily and my hair would look greasy even though just washed. It is expensive but, I have wasted so much money in the past on other recommended products. If this keeps giving these super results I will definitely order again.

Bought this as my hair was breaking quite badly and couldn’t get a brush through it even after conditioning after using this for several days my hair was so much better. Only a tiny pot but lasts for ages as you don’t need to use much.

I know it's a little pricey but it has transformed my hair. From dull, frizzy and lifeless to bouncy, full and shiny in around 3 or 4 uses. I have very fine, long hair and it was dry, brittle and lackluster before i tried this product, leave in conditioners left my hair heavy and awful. But this prouct is simple to use, very little goes a long way and i don't need to add any other products at all. It's a little hair miracle in a (very) tiny bottle. I've now ordered the full size and can't wait for it to arrive!

I’ve used £1.49 treatments that are better than this! My hairs not even that bad, just slightly dry and this made no difference. Just a waste of money.

Fantastic for improving her health and appearance. It has really reduced my split ends and made my hair feel soft and moisturised. It smells lovely. My only issue is that this does cost a lot for a small size product however you do only need 2 to 3 pumps each use and can use just once a week to get a good result.

Really helped my dry coloured hair .

I'm really not sure about this product. I do, however, have opinions. Ultimately the jury's out about the benefits and healing treatment on the hair long term, I have a few more uses left. I think my thoughts (which are complicated) could best be summed up as pros and cons for brevity's sake. Pros: - I fried my hair trying to add an auburn sheen - I used to dye my hair a lot and should have known better than to try again, but I was not prepared for the frizz I unleashed! Since the 2nd-or-so K18 application, my frizz is a lot less (but NOT gone!) - My hair does feel very soft - Frying my hair drastically reduced my natural curls, K18 may have helped start to bring these back - however changing my conditioner may have changed that too. Cons: - Price. Much like Olaplex, I feel this is very, very overpriced for what you get. The changes are not THAT amazing, and the amount of product is criminal. - Packaging. £30 for a 15ml, which is in an air-tight plastic pump that you cannot open to get any product left in the tube. I'm fully willing to bet there's a lot of product wastage there! - Hype. Hype never does anything any favours long term... yes, I think it helped with my damage from dying, but nothing's a miracle product and YMMV as to how much this helps you or not, how much a difference it makes or not. Personally it did make a difference for me, but I still expected more from the hype. - Long term benefit. I'm not sure about the long term pros of this product. - Method. How you're meant to use this product is very strict and I don't think it will work that well if you don't follow the instructions. Personally, my hair NEEDS a good conditioner, so having to omit conditioner... not so great. Also they recommend using it for multiple washes in a row - my hair cannot go multiple washes with shampoo each time and no conditioner each time, no way. And then there's the cost of using it for each wash, multiple washes in a row! - Amount. Goes back to price. I don't have masses of hair but I do have thick, longish hair and I could not make the amount they suggest stretch through all that. I had to use more, and that gets £££ as you burn through product. Ultimately, it's not a miracle product. It's a fairly decent product IF you have hair damage from chemical/heat, but if you're battling with just frizzy/thirsty/etc. hair I don't think it will do much. I do think the amount it will help you varies from person to person by a lot. And I really do think rave reviews, hype and marketing oversell how beneficial this product is. It is very expensive for what it is, and I think if you know your hair type and needs and have time to research or money to try new things, you can get better products which, if not cheaper, are at least more targeted for what you specifically need. It is marketed as a long term use product which is just not accessible price-wise for many people, myself included, and I don't know if the benefits will get any better than what it has already done for my hair. But it did help with damage in my specific circumstances - not to a miracle level but to a noticeable level. If you have the disposable income AND have chemical/heat damaged hair, give it a go. I would not splurge on a big size to begin with though, and I would be very, very realistic about the results and cost-to-impact you are going to see.

Extremely pricey stuff but it actually works long term on my severely damaged, spongy-when-wet, straw-hay-when-dry peroxide blonde hair. I have noticed that with continued use my hair looks and feels smoother with less tearing and breakage.

Tenía dudas por algunos comentarios que había leído sobre que no era para tanto, pero realmente puedo decir que funciona desde el primer uso. Mi pelo está decolorado, además llevo peinado bob, por lo que suelo peinar con calor y está rompiéndose. Aposté por este producto por su fama y puedo decir que desde el primer lavado se siente el pelo con más peso y menos fragilidad. Evidentemente si buscáis que solucione la rotura, seamos realistas, ningún producto lo hará. Si quieres mejorar la calidad de tu pelo y recuperar parte del daño, pruébalo. Es caro sí, pero los buenos productos lo son. No se necesita aplicar demasiado producto como cualquier producto de calidad.

fortalece bastante. com certeza vou comprar de novo.

Helt fantastisk resultat redan efter första behandlingen. Så bra för mitt hår som tagit en del stryk av färgbehandlingar. Kommer verkligen att fortsätta med det här.

I can say that this product was good but i think the product was too small for the price.