---
product_id: 355855500
title: "Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat"
brand: "k18"
price: "฿10245"
currency: THB
in_stock: true
reviews_count: 13
category: "K18"
url: https://www.desertcart.co.th/products/355855500-leave-in-molecular-hair-mask-repairs-dry-or-damaged-hair
store_origin: TH
region: Thailand
---

# Lightweight, no-rinse hydration Patented K18PEPTIDE molecular tech 4-minute rapid repair Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat

**Brand:** k18
**Price:** ฿10245
**Availability:** ✅ In Stock

## Summary

> 🧴 Repair your hair’s DNA in 4 minutes—because damaged hair is so last season!

## Quick Answers

- **What is this?** Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat by k18
- **How much does it cost?** ฿10245 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/355855500-leave-in-molecular-hair-mask-repairs-dry-or-damaged-hair)

## 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

- • **Molecular-Level Magic:** Patented K18PEPTIDE penetrates deep to rebuild hair from the inside out.
- • **Universal Hair Savior:** Perfect for all hair types—color-treated, bleached, heat-stressed, or chemically processed.
- • **Fast-Track Hair Revival:** Transforms damaged hair in just 4 minutes—because your time is precious.
- • **Effortless Routine Upgrade:** Skip conditioner, apply post-shower, wait 4 minutes, and style—simple, effective, salon-quality results.
- • **Silicone-Free & Weightless:** Enjoy soft, bouncy hair without any heavy residue or buildup.

## Overview

K18 Leave-In Molecular Hair Mask is a revolutionary 50ml treatment that repairs and reverses hair damage caused by bleach, color, heat, and chemicals in just 4 minutes. Powered by patented K18PEPTIDE technology, this lightweight, silicone-free formula penetrates deep into the hair’s core to restore strength, softness, and elasticity without rinsing. Suitable for all hair types, it delivers salon-grade, lasting repair and bounce, making it a must-have for professionals and trendsetters who demand healthy, resilient hair.

## Description

K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat, 50ml : desertcart.co.uk: Premium Beauty

Review: The best leave in mask for damage ever. - This stuff is a game changer in a bottle. It’s expensive, but worth it. You only need to use it once a week really anyways. Doesn’t leave my hair greasy but does a great job of making it feel brand new.
Review: Buy it! - My hair was damaged, dry & dull. It was really affecting me & after spending so much money on products and getting no results this was a final resort. I am so impressed, It has given my hair life again! It’s shiny, sleek & much healthier. I 1000% recommend this product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0961ZS96M |
| Best Sellers Rank | 517 in Beauty ( See Top 100 in Beauty ) 1 in Hair Masks |
| Country of origin  | USA |
| Customer reviews | 4.2 4.2 out of 5 stars (26,857) |
| Date First Available  | 2 May 2021 |
| Item model number  | K18-31005 |
| Manufacturer  | K18 |
| Product Dimensions  | 4.75 x 4.75 x 10.16 cm; 90.72 g |

## Product Details

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

## Images

![Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, Reverse Hair Damage from Bleach, Colour, Chemical Services & Heat - Image 1](https://m.media-amazon.com/images/I/71C7vrAyNkL.jpg)

## Available Options

This product comes in different **Size** options.

## 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

### ⭐⭐⭐⭐⭐ The best leave in mask for damage ever.
*by S***M on 24 January 2026*

This stuff is a game changer in a bottle. It’s expensive, but worth it. You only need to use it once a week really anyways. Doesn’t leave my hair greasy but does a great job of making it feel brand new.

### ⭐⭐⭐⭐⭐ Buy it!
*by K***. on 3 February 2026*

My hair was damaged, dry & dull. It was really affecting me & after spending so much money on products and getting no results this was a final resort. I am so impressed, It has given my hair life again! It’s shiny, sleek & much healthier. I 1000% recommend this product

### ⭐⭐⭐⭐⭐ 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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**Shop now:** [https://www.desertcart.co.th/products/355855500-leave-in-molecular-hair-mask-repairs-dry-or-damaged-hair](https://www.desertcart.co.th/products/355855500-leave-in-molecular-hair-mask-repairs-dry-or-damaged-hair)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-11*