

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.
🧴 Unlock your hair’s molecular glow-up in 4 minutes!
K18 Leave-In Molecular Repair Hair Mask is a cutting-edge peptide treatment that repairs hair damage at the molecular level in just 4 minutes. Designed for all hair types, it reconnects keratin chains disrupted by chemical, heat, and color damage, delivering stronger, smoother, and more resilient hair with visible results after only a few uses. This cruelty-free, leave-in formula replaces conditioner and is celebrated for its salon-quality performance and fast-acting power.





















| ASIN | B09HR5KSR8 |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #110 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #1 in Hair Treatment Masks |
| Brand | K18 |
| Brand Name | K18 |
| Customer Reviews | 4.3 out of 5 stars 31,901 Reviews |
| Global Trade Identification Number | 00858511001289 |
| Hair Conditioner Type | Hair Conditioning Mask |
| Hair Type | Chemically Treated |
| Item Dimensions | 1.37 x 1.37 x 3.18 inches |
| Item Form | Cream |
| Item Weight | 1 ounces |
| Liquid Volume | 15 cubic_meters |
| Manufacturer | K18 |
| Manufacturer Part Number | K18-31007 |
| Material Feature | Cruelty Free |
| Material Features | Cruelty Free |
| Model Number | K18-31007 |
| Number of Items | 1 |
| Package Type Name | Jar |
| Product Benefits | "Real, lasting repair powered by K18PEPTIDE™ Hair like new in 4 minutes* Soft, strong, bouncy hair for everyone " Product Benefits "Real, lasting repair powered by K18PEPTIDE™ Hair like new in 4 minutes* Soft, strong, bouncy hair for everyone " See more |
| Recommended Uses For Product | Shampoo, skip conditioner. Towel-dry thoroughly. Apply 1-3 pumps from ends to roots (3-9 pumps for 15ml sized mask). Less is more. Wait 4 minutes, do not rinse. |
| Scent Name | Fresh |
| Size | 0.51 Fl Oz (Pack of 1) |
| UPC | 858511001289 746559900490 858511001371 |
A**R
Worth it when you know what you’re buying
Amazing, please read. I never leave detailed reviews on products but I have to for this. In the last 7 days I attempted to remove purple dye including ion semi permanent color and Arctic Fox Purple AF out of my hair that I had been using for over 6 months. I used two different color removers including Color Oops, two different brunette dyes and bleach. Yes bleach, all within the last 7 days. Needless to say my hair is extremely damaged but less so after using this K18 product only once this evening. First off I would like to comment on the price and the amount of product you are getting I think people are not understanding what this product actually is. It is not meant to be repurchased several times back to back by the company, this is a mask treatment that is very concentrated and has specific directions on how to use. (Apply to towel dry hair after shampoo ONLY no conditioner should be used in the shower, apply only a couple of pumps and wait 4 minutes before drying) repeat this process for 3-4 washes for maximum results (although I saw noticeable results my first use) You are essentially buying a very concentrated formula that is designed to be used like the above the directions (not some ongoing product designed to be applied daily) that is why the price is so high! There is no need to have this product in a huge quantity because it simply isn’t needed, the bottle and price are actually appropriately priced (objectively we would like prices to be low as possible I know) but this is high-end salon quality result K18 is known to deliver which why their prices are generally pricier than drugstore. Bottom line: in my experience it is worth it knowing the damage my hair was under and knowing the concentrated formula designed to be used under specific directions (think of a spot treatment, not long-term) My hair is noticeably more manageable, significantly softer and smoother with less noticeable flyaways and less obvious signs of damage and this is being said with just one application.
P**V
Made my hair young again
Made my hair look young again. My hair was dry. My hair is now smooth and healthy looking. Expensive, but works!
J**E
Saving My Damaged Hair!!!
This hair mask works wonders if you’re trying to restore damaged hair! I had really bad split ends that kept breaking off, to the point where my hair was actually getting shorter. It was honestly making me so sad because I was trying to grow my hair out but couldn’t get ahead of the breakage. I tried several cheaper, store-brand hair masks first because I didn’t want to spend the money on K18, but none of them were really helping. I finally gave in and purchased it, and I’m so glad I did. Even though the bottle is only 1.7 fl oz, a little goes a long way, and my hair feels noticeably stronger and more bonded for days between washes. If you have a lot of hair, you may need 3–4 pumps or more, so this could definitely become a recurring purchase. It is pricey for such a small bottle, but if you’re dealing with damaged hair and constant breakage, I think it’s worth giving K18 a chance. I’m really happy I finally did!
T**L
This actually works!
After spending a lot of money buying expensive styling products, shampoos and conditioners, I finally found something that works. My hair was so damaged by a crap straightener I never thought it would look healthy again. Don’t expect immediate results. It took 2 weeks of applying every day to have it soft and to begin showing signs of repair. I also suggest getting a good leave in conditioner that is light weight. Yes it is expensive but honestly I only use very little at a time. I don’t mind buying because it lasts a long time and I’m not wasting my money on products that don’t work. If you have damaged hair I promise this will work.
M**L
If your hair is angry from not such great ideas -use this
I decided to get a perm that well didn’t look or go as well as I would have liked but we are going to get through it. My ends didn’t do well at all and I had 3 inches cut off and immediately after started K 18 leave in treatment, first I noticed my hair settling down and feeling softer. The ends that still need to be trimmed looked better and the frizzyness was a tad tamed. There is not much of a scent which I appreciated, my hair has a nice shine without being greasy, it was easy to use, pump the amount of product for your hair, I did 1.5, rub to emulsify and pull through your hair, wait 4 minutes and add your products and style. I used a clarifying shampoo the first time since so many hair creams have silicone which makes it hair for any product to penetrate and since this is a leave-in and works from the inside by being absorbed. I am happy with this product and this will be a part of maintenance as my hair grows out again and this perm is a funny remember that great idea I had 😉 for Me the cost and results have been outstanding! I did 5 treatments consecutively and will do a once a month maintenance.
T**✨
Great Results, but a Bit Pricey
I’ve been using the K18 Leave-In Molecular Repair Hair Mask on my color-treated and damaged hair, and I’ve noticed a real improvement in how soft and healthy it feels. My hair looks smoother, feels stronger, and has less frizz after using it consistently. I also like that it’s lightweight and doesn’t leave my hair greasy or weighed down. The application is simple, and since only a small amount is needed, a little product goes a long way. It works especially well when following the instructions and using it as part of a regular hair care routine.The only reason I’m giving it four stars instead of five is the price. While the product performs well, it is expensive for the amount you receive, so it may not fit everyone’s budget.Overall, I think it’s a high-quality treatment that delivers noticeable results, especially for damaged or chemically treated hair. If you’re willing to invest in your hair care, it’s definitely worth trying.
J**R
My hair feels so much better
I was a little skeptical because of the price, but this really does make a difference in my hair. You only need a small amount, and my hair feels softer, smoother, and much healthier after using it. I especially notice a difference in how manageable it is and how much better my ends feel. A little goes a long way, so the bottle lasts longer than I expected. Definitely worth it for me!
E**L
Tiny bottle, but absolute magic for greasy hair!
I was a bit shocked by how small the bottle was for the price, but let me tell you—it is worth every single penny. Before using K18, my hair would get greasy so fast that I had to wash it every other day. Since adding this to my routine, my hair stays clean, fresh, and lightweight for days at a time. A little goes a long way: You truly only need about 3 to 4 pumps. The trick is to rub it thoroughly between your hands until it turns white/emulsifies before applying. I’ve had my bottle for about two months now, using it 1–2 times a week, and I still have product left. Don't let the size fool you; it lasts! Highly recommend if you’re willing to pay $30 every three months.
C**P
Extremely expensive but it actually does what it claims
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.
C**N
Cumple las expectativas
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.
I**O
perfeito.
fortalece bastante. com certeza vou comprar de novo.
M**G
Fantastiskt
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.
Y**H
effective!
I can say that this product was good but i think the product was too small for the price.
Trustpilot
1 month ago
2 weeks ago