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K18

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

    • Based on 20,192 reviews
Condition: New
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$75.00 Why this price?

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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Oct 25
Order within 21 minutes
Available payment plans shown during checkout

Size: 50 ml


Brand: K18


Item Form: Cream


Material Feature: Natural


Hair Type: Damaged


Product Benefits: Our K18PEPTIDE™ repairs hair at a molecular level across multiple types of bonds, restoring hair health for all See more


Product Dimensions ‏ : ‎ 3.54 x 1.57 x 3.54 inches; 3.2 ounces


Item model number ‏ : ‎ K18-31005


UPC ‏ : ‎


Manufacturer ‏ : ‎ K18


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great product
Size: 50 ml
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. ... show more
Reviewed in the United States on September 21, 2024 by Carolyne K.
    • Hands down the best!
Size: 0.51 Fl Oz (Pack of 1)
Review Image by Talk show host Talk show host
Review Image by Talk show host Talk show host
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 ! ... show more
Reviewed in the United States on September 1, 2024 by Talk show host Talk show host
    • Expensive- but worth it
Size: 50 ml
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. ... show more
Reviewed in the United States on October 4, 2024 by G&B
    • Works great, wish it came un-fragranced
Size: 0.51 Fl Oz (Pack of 1)
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. ... show more
Reviewed in the United States on September 11, 2024 by Gyakusetsu
    • I never thought I could love a leave in!
Size: 0.51 Fl Oz (Pack of 1)
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. ... show more
Reviewed in the United States on October 14, 2024 by Best leggings ever. Smooth material. Does not pick up on fuzz, tucks everything in nice and smooth, and super comfortable!
    • Excellent product
Size: 50 ml
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! ... show more
Reviewed in the United States on October 16, 2024 by LLara
    • Fall in love with K18 for lots of $ LOL
Size: 50 ml
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! ... show more
Reviewed in the United States on October 7, 2024 by Amazon Customer
    • PRICY but is all worth.
Size: 0.51 Fl Oz (Pack of 1)
This product is excellent, it is pricy for the size of the bottle but it works and it works well. My hair is colored and i can see the damage the coloring is doing to my hair. I started to used this product and my hair feels smooth and I see that now after using it every time i wash my hair (2 a week, don’t judge me my hair is red and if I wash it more than that the color washes away faster that any other hair tint) anywho, the hair looks shiny again. Highly recommended for colored hair. ... show more
Reviewed in the United States on September 4, 2024 by Chaka Khach Kornelli

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