---
product_id: 365126853
title: "K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml"
brand: "k18"
price: "€ 249.04"
currency: EUR
in_stock: false
reviews_count: 11
url: https://www.desertcart.sk/products/365126853-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask-5
store_origin: SK
region: Slovakia
---

# 4-minute rapid repair patented K18Peptide tech long-lasting molecular rebuild K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml

**Brand:** k18
**Price:** € 249.04
**Availability:** ❌ Out of Stock

## Summary

> 🧬 Unlock your hair’s molecular magic—because damaged hair is so last season.

## Quick Answers

- **What is this?** K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml by k18
- **How much does it cost?** € 249.04 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/365126853-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask-5)

## 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

- • **Leave-In Luxury:** No rinsing needed—integrates naturally with keratin for ongoing restoration and resilience.
- • **Universal Hair Hero:** Works seamlessly on all hair types and damage levels—color, bleach, heat, or chemical treated.
- • **Cruelty-Free Confidence:** Ethically crafted with no animal testing, aligning beauty with your values.
- • **Fast-Track Hair Revival:** Repairs extreme damage in just 4 minutes—because your time is precious.
- • **Science-Backed Strength:** Patented K18Peptide penetrates deep to reconnect broken hair bonds at the molecular level.

## Overview

K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask is a 5 ml cream treatment that uses a patented peptide technology to repair and rebuild hair from within in just 4 minutes. Designed for all hair types and damage caused by bleach, color, heat, or chemicals, it leaves hair stronger, healthier, and visibly renewed without rinsing. This cruelty-free formula integrates with natural keratin chains for lasting results.

## Description

K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml : desertcart.co.uk: Premium Beauty

Review: Amazing product. - I love this product. I have blonde hair (not natural) and it can get very dry. I notice a different even after one use. Having used it for a while now it has made a massive difference to my hair. It feels soft and strong. I suffer from a lot of hair loss and it has also helped with this greatly. I don't have near as much breakage so it works well and does exactly what it says it does. It is a small tube but it goes a long way . It is a bit expensive but I believe it's worth every penny.
Review: Improved hair health and appearance - I bought the 5ml sample size which was perfect - though it looks tiny it has lasted six applications for my shoulder-blade length, medium thickness, bleach damaged, heat-treated, perimenopausal hair. I had noticed a lot of breakage, especially near my crown. My hair always felt frazzled at the ends and just didn't look shiny or healthy. I used Head and Shoulders clarifying shampoo then K18 for six consecutive washes, followed by Redken Extreme Length leave in conditioner. You have to wait four minutes once you've applied the K18 then style as usual (no need to wash out). It's simple to use in the shower routine and adds no extra time - in fact it saves time as you don't need to use conditioner afterwards. My hair felt softer and healthier after each use and others have complimented my hair. It's not got any particular wow factor after one wash but my hair is now 100% in better condition. Broken ends are smoother and less noticeable, my hair looks so much shinier, fuller and healthier. I'll have a rest from this now but probably do another six washes after my next lightening session to maintain strength and health.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B08VD75V4F |
| Best Sellers Rank | 59,026 in Beauty ( See Top 100 in Beauty ) 193 in Hair Masks |
| Customer reviews | 4.2 4.2 out of 5 stars (3,599) |
| Date First Available  | 28 July 2021 |
| Item model number  | K18-31001 |
| Manufacturer  | K18 |
| Product Dimensions  | 2.79 x 9.14 x 9.14 cm; 18.14 g |

## Product Details

- **Brand:** K18
- **Hair type:** Damaged
- **Item form:** Cream
- **Material feature:** Vegan
- **Product benefits:** Breakage Control, Damage Control, Renews Hair Cell, Split Ends Repair, Strengthening

## Images

![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml - Image 1](https://m.media-amazon.com/images/I/21tvkQPUBQS.jpg)
![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml - Image 2](https://m.media-amazon.com/images/I/315AlqsPNSL.jpg)
![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml - Image 3](https://m.media-amazon.com/images/I/31aga0MWsHL.jpg)
![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml - Image 4](https://m.media-amazon.com/images/I/41hNzPETGmS.jpg)
![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml - Image 5](https://m.media-amazon.com/images/I/515JXi2qRJL.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

### ⭐⭐⭐⭐⭐ Amazing product.
*by C***C on 10 July 2025*

I love this product. I have blonde hair (not natural) and it can get very dry. I notice a different even after one use. Having used it for a while now it has made a massive difference to my hair. It feels soft and strong. I suffer from a lot of hair loss and it has also helped with this greatly. I don't have near as much breakage so it works well and does exactly what it says it does. It is a small tube but it goes a long way . It is a bit expensive but I believe it's worth every penny.

### ⭐⭐⭐⭐⭐ Improved hair health and appearance
*by C***Y on 15 January 2025*

I bought the 5ml sample size which was perfect - though it looks tiny it has lasted six applications for my shoulder-blade length, medium thickness, bleach damaged, heat-treated, perimenopausal hair. I had noticed a lot of breakage, especially near my crown. My hair always felt frazzled at the ends and just didn't look shiny or healthy. I used Head and Shoulders clarifying shampoo then K18 for six consecutive washes, followed by Redken Extreme Length leave in conditioner. You have to wait four minutes once you've applied the K18 then style as usual (no need to wash out). It's simple to use in the shower routine and adds no extra time - in fact it saves time as you don't need to use conditioner afterwards. My hair felt softer and healthier after each use and others have complimented my hair. It's not got any particular wow factor after one wash but my hair is now 100% in better condition. Broken ends are smoother and less noticeable, my hair looks so much shinier, fuller and healthier. I'll have a rest from this now but probably do another six washes after my next lightening session to maintain strength and health.

### ⭐⭐⭐⭐⭐ Tell me what kind of witchery is this !?
*by T***S on 5 October 2022*

I wish I'd taken a before photo .I have been using £40 quid salon masks and shampoos and serums and nothing has been working to revive my fine, fried multi -bleached over- processed and breaking hair.I bought the sachets of Aphogee protein treatment on here a fortnight ago ,which was incredible and definitely helped stop the breaking and did make my hair feel and look so much better.I wanted to use it again because 2 weeks later my hair was back to looking flat and damaged,but but was advised not to due to 'protein overload' .I've been obsessed with finding a miracle since an expert hairdresser advised that my only solution was to get a pixie which I can't face ,as it took me 4 years to grow out my last short cut due to bleach damage to almost shoulder length but I just had to cut 4 inches off to disguise all the recent breakage from a semi permanent (that was not supposed to be damaging ) I bought this after tons of research and since it is only £6 I felt had nothing much to lose . The tube is teeny but I read that you only use a pea sized amount .In 5ml there is at least 4 applications left . The results have been ASTONISHING .Suddenly I've got my pre -dyed teenaged big hair back .It looks longer probably because of the fullness ,it looks like completely different hair.. I did use leave- in conditioner ( Peurology) after the initial 4 minutes , though it says not to use conditioner afterwards .It's shiny and has gone big and woofy with minimal styling and feels soft,I can barely feel the fried parts anymore and it's just doing all the right things Tell me kind of witchery is this !? I really hope results last .

## Frequently Bought Together

- K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, 5 ml
- Olaplex No. 3 Hair Perfector Repairing Hair Treatment, Concentrated for Dry Damaged Hair, Repairs & Strengthens All Hair Types, 100ml

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/365126853-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask-5](https://www.desertcart.sk/products/365126853-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask-5)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-25*