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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 21,499 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, Jan 24
Order within 20 hours and 39 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, Jan 24

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Miracle in a Bottle
Size: 50 ml
Review Image by Brandi brown Brandi brown
I’ve been using the K18 Leave-In Treatment, and it’s a total game-changer for my hair! It works wonders on damaged hair from bleach, color treatments, and heat—my hair feels stronger, softer, and looks so much healthier. What I love is that it doesn’t just cover up damage, but actually restores it from the inside out, giving me that "like-new" texture. Plus, the results last without washing away, so it’s truly a treatment that keeps working over time! ... show more
Reviewed in the United States on January 2, 2025 by Brandi brown Brandi brown
    • Great
Size: 0.51 Fl Oz (Pack of 1)
This stuff is great! Put in hair after towel drying and comb in. Leave in. Not oily. Prevents frizz and fly aways. Conditions hair well. Do wish the price is less! Be careful, read reviews. Some are knock offs. Also check size before ordering.
Reviewed in the United States on December 29, 2024 by Robin
    • Its worth the hype
Size: 0.51 Fl Oz (Pack of 1)
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
It doesnt take much at all the first pic is before the 2nd is after my hair is shedding less its very soft and feels healthier in genral and it has a great shine
Reviewed in the United States on January 7, 2025 by Amazon Customer Amazon Customer
    • Pretty good!
Size: 0.51 Fl Oz (Pack of 1)
The product demonstrated satisfactory performance, albeit at a substantial cost. Despite meticulous adherence to the provided instructions, a significant portion of my hair, approximately four inches, had to be sacrificed in an attempt to salvage the damage. It is important to note that my hair had not undergone any extreme treatments such as bleaching. While the product did result in an improvement in hair texture, it did not live up to its promise of miraculous transformation. The initial application seemed promising, but the effects proved to be transient, with my hair reverting to its tangled and brittle state the following day. The product itself is relatively odorless. Given my hair type, which is on the finer side and was previously beyond my bust, I have had to cut it to around my collarbone length in order to eliminate the damage and start anew. I strongly recommend the use of henna as an alternative to conventional hair dyes, as I deeply regret my reliance on numerous box dyes. It appears that the positive effects of this product are short-lived, necessitating more frequent use than anticipated. ... show more
Reviewed in the United States on November 12, 2024 by Brittny Grimes
    • Two years later and my hair has never felt better!
Size: 50 ml
I’ve been on quite the hair journey. It started at my waist, and damaged from years of bleaching. Then the big chop, but continued processing so the split ends never quite went away. Finally I started using this perfectly as the instructions say for initial use then maintenance and Y’ALL there’s not a split end on my whole head now. Two years of growth and I have completely cut off everything processed and used this k18 treatment twice every week as recommended. My hair looks thicker (because no dead ends!), it’s super soft and smells sooooo good (I rub the excess from my palms on my neck like a perfume/lotion won’t lie), and it adds a nice shine to any styles you do after! To use it you just apply to slightly damp hair (there’s a sweet spot of wetness you gotta find) and just run it through your hair and use a brush to disperse. It also has detangling properties so it’s super easy. I have a thin straight hair type that likes to tangle so I normally don’t try to brush it wet but this is sooo silky. It’s expensive sure, BUT you use so little even for a LOT of hair. Using too much isn’t recommended so that’s another sweet spot. The little bottle lasts me about 6 months and the larger one over a year. I’ve bought both!! ... show more
Reviewed in the United States on November 5, 2024 by Lily
    • 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

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