K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Color, Chemical Services & Heat

$29.00

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Price: $29.00
(as of Oct 31, 2024 08:08:17 UTC – Details)

From the brand

K18K18

k18k18

science backed haircare

Our professional stylist-approved biotech breakthroughs deliver your healthiest hair.

Engineered for all hair types.

sold exclusivelysold exclusively

Your Healthy Hair Routine

k18k18

reverse hair damage

K18 molecular repair is cilincally proven to reverse damage from bleach, color, and chemical services in 4 minutes.

Who are we?

We’re a biotech-powered brand breaking the rules on haircare. Beloved by the PRO community and at-home users in 100+ countries, 20+ billion Tik Tok views, and 25+ prestigious awards, our growing line up of intentional, science backed haircare is all about unlocking next-level expression for all.

What makes our products unique?

Our K18PEPTIDE-powered innovations were born in the biotech lab to radically simplify your routine and deliver your cleanest, healthiest hair.

Product Dimensions ‏ : ‎ 3.15 x 1.57 x 1.57 inches; 1 ounces
Item model number ‏ : ‎ K18-31007
UPC ‏ : ‎ 858511001289 746559900490 858511001371
Manufacturer ‏ : ‎ K18
ASIN ‏ : ‎ B09HR5KSR8
Country of Origin ‏ : ‎ USA

Customers say

Customers like the hair health, softness, and shine of the conditioner. They mention it leaves their hair looking healthy, strengthens it, and transforms it for the better. Some appreciate the shine. However, some customers feel the product is expensive and not practical for everyday use. They also dislike the bottle size. Opinions are mixed on hair strength and hydration.

AI-generated from the text of customer reviews

12 reviews for K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Color, Chemical Services & Heat

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  1. Carolyne K.

    Great product
    Highly recommend. Expensive but now I know why. You only need a little though. The bottle lasts. Will definitely repurchase. I love the K18 line. Their products are transformative to say the least. Fantastic for my fine hair that has never been longer ever. And I’m 58 and I have the hair of my youth. Silky, soft with minimal breakage. If you’re on the fence, let me make the decision for you. Some people claim it makes their hair fall out, but I just think that’s the bad hair coming out that would’ve come out anyway. My stylist can’t believe the health of my hair. I play with it as much as possible cause it’s so pretty.

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  2. Talk show host

    Hands down the best!
    Wow! Am I shook! This is by far one of the most amazing products Iv used.. 10/10 beats olaplex products by 100%!!! I stripped my hair it was breaking off and I couldn’t blow dry it I cloudy brush it it was so raw, after color remover was put on my hair for an hour.. this product after one use my hair is soft the texture is smooth and silky . It doesn’t look fried and dry. I mean wow! It is pricy for such a tiny thing.. but worth every penny! And smells good not stinky . Thank you for such an incredible product !

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  3. G&B

    Expensive- but worth it
    I was sceptical but read do many good reviews that I decided to try it. My hair was over processed and in very poor shape- I have used this 3 times so far and my hair is not just back – it’s in fabulous condition and feels amazing. I’m hooked-just wish it were cheaper but I think it will actually cut down on visits to the hairdresser as my hair looks so good now. Definitely worth the money.

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  4. Gyakusetsu

    Works great, wish it came un-fragranced
    My hair is ultra-processed with bleach and ‘fashion’ dyes that leave it horribly damaged. This stuff really does wonders. My hair stylist originally turned me on to it and WOW am I glad I found it. Really expensive, however I can’t find anything cheaper that works this well. Honestly this is the only thing I have found that makes my hair feel normal again.My ONLY major complaint is that it does have a fragrance added to it which is totally unnecessary. Granted it is light, not super feminine, and goes away after a few hours, but I wish it came in a fragrance-free option for those (like me) who are sensitive to fake scents. Totally unnecessary. Enough to knock a star off unfortunately. If this company made a fragrance-free line I would give it 5 stars immediately.

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  5. Best leggings ever. Smooth material. Does not pick up on fuzz, tucks everything in nice and smooth, and super comfortable!

    I never thought I could love a leave in!
    I’ve tried many a leave in conditioner and they always left my hair feeling heavy and sticky. They just weren’t right for my hair type, which is thinning, damaged, and dry. I also live in the very humid state of Florida. I watched a YouTuber who happened to have gorgeous hair, but had nothing to do with the beauty industry. She had gotten a lot of questions on her hair and recommended this. I’m soooo glad I hit buy it now! This is the best conditioner, hair mask, and leave in conditioner I’ve ever used. I’ve been using for about 3 weeks and I only wash about 1-2 times per week. In this 3 weeks, I suddenly have shine, volume, and no longer feel a need to blow out my hair, or curl, or iron it. I simply blow dry my roots about 10 minutes after applying from mid length to ends. Let the rest air dry and holy cow, the difference!! I’ll wrap it up in a soft scrunchie once dry for sleeping and when I wake up, it looks like I had it professionally done! The shedding had been much less since I started using. I don’t know if that’s from this or just a natural cycle and to be fair, I also dyed my hair from copper back to my natural dark brown. But this is now a forever staple in my hair routine. The smell is pleasant and not overbearing. My hair feels stronger, and I’m not finding the tangles I once was. My hair used to be so dry that I couldn’t get a brush through it.

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  6. LLara

    Excellent product
    This product has transformed my hair from being dry and flat to soft, bouncy and manageable. This isn’t a cheap product but well worth the money. I run a small amount through my hair after my shower. I let my hair air dry and pair this product with a heat protectant before styling. The result is noticeable and my hair stays frizz free and soft until my next wash!

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  7. Amazon Customer

    Fall in love with K18 for lots of $ LOL
    I fell in love with the K18 Leave-In Molecular Hair Mask about a year ago after my hairdresser introduced me to it. While it’s on the pricier side, its effectiveness and quality make it worth every penny. When I’m unable to splurge, I turn to my regular leave-in spray, Perfect 10 Lite.As someone with thin, color-treated hair that tangles easily and suffers from damage, this product has been a game changer. It shortens my shower time, extends the life of my conditioner, makes brushing my hair effortless, and leaves my hair looking healthy once styled.I recently purchased the larger size, fully aware of the cost. However, when I opened my package, I briefly thought I either ordered the smaller size by mistake or received the wrong item. I realized it was indeed the larger size I ordered and I debated returning it.The true test came when I woke up with a legit rat’s nest. I was so thankful I had this product on hand, as it made detangling much easier than previous times when I had nothing to help with the mess.One note: I read a review suggesting that you should rub the product between your palms to activate it before applying it to your hair. That makes sense, and I’ll definitely give it a try. However, I find it quite unethical that the company leaves this step out of the instructions on the box and bottle. It feels like they might not want you to use it correctly so that you’ll need to buy more sooner—quite disappointing!

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  8. Maria Luisa

    Muy buen producto, es caro pero vale la pena, se ven resultados en una semana y no se necesita usar gran cantidad

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  9. Ana Rodrigues

    Recupera bem o cabelo. Produto incrível. A entrega atrasou por culpa dos correios já que o vendedor postou o produto rápido. Produto veio bem embalado, lacrado e com manual de instruções. O tamanho é bom, vai render bastante. Essa é a segunda vez que compro o k18 e a primeira desse vendedor e gostei mais desse porque veio lacrado e com manual de instruções.

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  10. B. Doyle

    I use this after the K18 shampoo. It acts as a conditioner and makes my hair feel soft and renewed.

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  11. Excelente compra . Desde el primer día de uso mejora tu postura . Lo recomiendo .

    El precio es demasiado alto . Pero vale la pena 100%

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  12. Amazon Customer

    The bottle is small but it lasts longer then you think and it really does make your hair so much healthier. Love this stuff.

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    K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Color, Chemical Services & Heat
    K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Color, Chemical Services & Heat

    $29.00

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