---
product_id: 355855500
title: "K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml"
brand: "k18"
price: "91.93 DT"
currency: TND
in_stock: false
reviews_count: 13
url: https://www.desertcart.tn/products/355855500-k18-leave-in-molecular-hair-mask-repairs-dry-or-damaged
store_origin: TN
region: Tunisia
---

# Lightweight, no-rinse formula Patented K18PEPTIDE tech 4-min fast repair K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml

**Brand:** k18
**Price:** 91.93 DT
**Availability:** ❌ Out of Stock

## Summary

> 🧴 Unlock your hair’s molecular magic in just 4 minutes!

## Quick Answers

- **What is this?** K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml by k18
- **How much does it cost?** 91.93 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/355855500-k18-leave-in-molecular-hair-mask-repairs-dry-or-damaged)

## Best For

- k18 enthusiasts

## Why This Product

- Trusted k18 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Silicone-Free & Weightless:** Enjoy soft, non-greasy hair without buildup—perfect for all hair types and textures.
- • **Skip Conditioner, Save Time:** Simplify your routine by shampooing and applying this leave-in mask—no rinsing needed.
- • **Salon-Grade Repair in 4 Minutes:** Experience rapid transformation with a scientifically advanced formula that reverses damage fast.
- • **Molecular-Level Hair Restoration:** Patented K18PEPTIDE penetrates deep to rebuild hair from the inside out for lasting strength and bounce.
- • **Trusted by Professionals & Millennials Alike:** Join 26,000+ users who swear by K18 for healthier, shinier, and resilient hair.

## Overview

K18 Leave-In Molecular Hair Mask is a revolutionary 50ml treatment that repairs dry, bleached, or chemically damaged hair in just 4 minutes. Powered by patented K18PEPTIDE technology, it penetrates deep into the hair shaft to restore strength, softness, and elasticity without rinsing or weighing hair down. Suitable for all hair types, this lightweight, silicone-free formula replaces conditioner and delivers salon-quality results at home, making it a must-have for anyone serious about hair health.

## Description

Product Description K18 Leave-In Hair Repair Mask (50ml) is a scientifically advanced, leave-in treatment that repairs damaged hair in just 4 minutes. Powered by patented K18 Peptide Technology, this silicone-free, lightweight formula penetrates deep into the hair’s core to reverse damage caused by coloring, bleaching, heat styling, and chemical treatments. Unlike traditional conditioners, this no-rinse mask restores strength, softness, and elasticity without buildup or heaviness. Suitable for all hair types, it delivers salon-quality repair and long-lasting results for healthier, shinier, and more resilient hair. Ingredients Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions IN the shower: Shampoo, do not condition. OUT of the shower: Towel dry thoroughly. Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time. Let sit for 4 minutes to activate. Do NOT rinse out. Style as usual. Safety Warning For external use only. See more

Review: This works if you actually need it. - I think alot of people use K18 without understanding if they need it or who it is for. My hair at one time felt really dry and I asked my hairdresser about K18 and she stated that I did not need it K18 and is it is a product designed for damaged hair. Another occasion I had really bad heat damage on my side fringe caused by a combination of bleach and GHD's. It couldn't be cut out because of where it was and it would have looked odd. At that point I was advised to use K18. A little goes a really long way. It is also not designed to be used for an extended period with every wash. It is a treatment. If you do not apply it correctly then it will not worked. If you apply it without towel drying your hair or if you have used a conditioner beforehand it will not work. The conditioner prevents K18 from penetrating the hair and doing it's job. When I applied it to my very frazzled side fringe within a few uses it had significantly reversed the damage. I have found it has done more for my hair than Olaplex, even though they do very different things. K18 fixes my hair far more effectively than Olaplex has ever prevented any damage from bleaching. If you overuse this product or use it when you don't need it then it will actually make the condition of your hair worse. It is very expensive but it is only supposed to be used to reverse the damage then you should stop using it. If your hair is in a worse condition, then it is likely you didn't need it and if it hasn't done anything its possible you haven't used it correctly. Also desertcart is an official stockist of K18 so as long you haven't purchased it from a seller that isn't K18 then you will get a legitimate product. In short, it's pricey but effective as long as you use it right and actually need it.
Review: Great product - Product is great for my hair as it is very dry and broken

## Features

- Leave-in treatment mask delivers real, lasting repair for hair like new* in 4 minutes. Patented K18PEPTIDE works at the molecular level (where all hair is the same) for soft, strong, and bouncy results for all hair types.
- Real, lasting repair powered by K18PEPTIDE. Hair like new in 4 minutes*. Soft, strong, bouncy hair for everyone
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0961ZS96M |
| ASIN  | B0961ZS96M |
| Best Sellers Rank | 548 in Beauty ( See Top 100 in Beauty ) 1 in Hair Masks |
| Brand | K18 |
| Colour | White |
| Country of origin  | USA |
| Customer Reviews | 4.2 4.2 out of 5 stars (26,618) |
| Customer reviews | 4.2 4.2 out of 5 stars (26,618) |
| Date First Available | 2 May 2021 |
| Format | Cream |
| Item dimensions L x W x H | 47 x 47 x 102 millimetres |
| Item model number | K18-31005 |
| Item model number  | K18-31005 |
| Item weight | 3.2 Ounces |
| Manufacturer | K18 |
| Manufacturer  | K18 |
| Package Weight | 0.09 Kilograms |
| Package dimensions | 10.4 x 4.7 x 4.6 centimetres |
| Product Dimensions | 4.75 x 4.75 x 10.16 cm; 90.72 g |
| Product Dimensions  | 4.75 x 4.75 x 10.16 cm; 90.72 g |
| Scent | Fresh |
| Special features | Not Tested On Animals |
| Speciality | Natural,Natural―so |
| Volume | 50 Millilitres |

## Product Details

- **Brand:** K18
- **Hair type:** All
- **Item form:** Cream
- **Material feature:** Cruelty Free, Natural, Vegan

## Images

![K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml - Image 1](https://m.media-amazon.com/images/I/61BchFt1Q6L.jpg)
![K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml - Image 2](https://m.media-amazon.com/images/I/71C7vrAyNkL.jpg)
![K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml - Image 3](https://m.media-amazon.com/images/I/71DQDGVQ4WL.jpg)
![K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml - Image 4](https://m.media-amazon.com/images/I/819q8D-jLSL.jpg)
![K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml - Image 5](https://m.media-amazon.com/images/I/81BhcRGufmL.jpg)

## Questions & Answers

**Q: Hi folks do you put this on to dry hair or damp hair? Thank you 😊**
A: You shampoo and towel dry your hair, a clarifying shampoo if you have (do not use conditioner). Then apply 1-5ml depending on hair length, working into more damaged areas mid lengths and ends, comb through. Leave for 4 minutes and then style as usual (you can then add all your usual styling products). Hope this explains. Thanks TheHairShop

**Q: I'd like to know the cost to the UK - don't understand the tax and import implications but don't want any surprises!**
A: I understand you are in UK
Goods in UK - No extra cost or import implications

**Q: Can I use this product without hair drying my hair afterwards? Can it also be used with the bowl method for my wavy hair?**
A: Hi

The K18 Leave-In Repair Hair Mask is designed to be used as a leave-in treatment, so you don't necessarily need to dry your hair afterwards. It's meant to be applied to damp or towel-dried hair and left in without rinsing. You can simply apply the product and let your hair air dry naturally.

As for using the bowl method with the K18 mask, the bowl method is typically used for deep conditioning treatments, where the hair is saturated with a conditioner or mask and then covered with a shower cap or plastic wrap to enhance absorption. While the K18 mask is not specifically intended for the bowl method, you can certainly try it if you prefer that method. However, keep in mind that the K18 mask is formulated as a leave-in treatment, so it may not have the same effect when used with the bowl method compared to traditional rinse-out masks. It's always a good idea to follow the instructions provided by the manufacturer for the best results.

Have a great weekend!

**Q: Does it weight the hair down? And makes it flat like a keratin treatment does it?**
A: Not at all don’t apply too much, where is your hair damaged the most? Apply it there and brush through! It’s the best thing I’ve ever bought for my extremely damaged coloured fine brittle hair! Buy the small 5ml to try if your not sure. I got 3-4 uses from that tube. Hope this helped x

## Customer Reviews

### ⭐⭐⭐⭐⭐ This works if you actually need it.
*by J***A on 12 September 2025*

I think alot of people use K18 without understanding if they need it or who it is for. My hair at one time felt really dry and I asked my hairdresser about K18 and she stated that I did not need it K18 and is it is a product designed for damaged hair. Another occasion I had really bad heat damage on my side fringe caused by a combination of bleach and GHD's. It couldn't be cut out because of where it was and it would have looked odd. At that point I was advised to use K18. A little goes a really long way. It is also not designed to be used for an extended period with every wash. It is a treatment. If you do not apply it correctly then it will not worked. If you apply it without towel drying your hair or if you have used a conditioner beforehand it will not work. The conditioner prevents K18 from penetrating the hair and doing it's job. When I applied it to my very frazzled side fringe within a few uses it had significantly reversed the damage. I have found it has done more for my hair than Olaplex, even though they do very different things. K18 fixes my hair far more effectively than Olaplex has ever prevented any damage from bleaching. If you overuse this product or use it when you don't need it then it will actually make the condition of your hair worse. It is very expensive but it is only supposed to be used to reverse the damage then you should stop using it. If your hair is in a worse condition, then it is likely you didn't need it and if it hasn't done anything its possible you haven't used it correctly. Also Amazon is an official stockist of K18 so as long you haven't purchased it from a seller that isn't K18 then you will get a legitimate product. In short, it's pricey but effective as long as you use it right and actually need it.

### ⭐⭐⭐⭐⭐ Great product
*by A***R on 6 December 2025*

Product is great for my hair as it is very dry and broken

### ⭐⭐⭐⭐⭐ Softer, Shinier Hair
*by V***Y on 6 October 2025*

This hair mask is really nice. It makes hair feel lovely and soft and the styling seems to last longer. It is quite expensive but I find it really good.

## Frequently Bought Together

- K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Color, Chemical Services & Heat
- K18 Damage Shield Protective Conditioner, Protects Hair from Daily Damage, Improves Strength & Shine, 8.5 Fl Oz
- K18 Damage Shield Protective Shampoo, Reduces Frizziness & Tangles, Maintains Hair Health, 8.5 Fl Oz

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-26*