---
product_id: 383765053
title: "Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat"
brand: "k18"
price: "210.41 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "K18"
url: https://www.desertcart.tn/products/383765053-leave-in-molecular-repair-hair-mask-patented-lasting-repair-dry
store_origin: TN
region: Tunisia
---

# Patented K18Peptide biotech repair Visible results in just 4 minutes Lasting repair that integrates with keratin Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat

**Brand:** k18
**Price:** 210.41 DT
**Availability:** ✅ In Stock

## Summary

> 🧪 Unlock your hair’s DNA: Repair, Renew, Radiate!

## Quick Answers

- **What is this?** Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat by k18
- **How much does it cost?** 210.41 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/383765053-leave-in-molecular-repair-hair-mask-patented-lasting-repair-dry)

## 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

- • **Universal Hair Renewal:** Works on all hair types and damage levels, from bleach to heat, restoring youthful bounce and shine.
- • **Effortless At-Home Luxury:** Skip conditioner, apply a few pumps, wait, and go—no rinsing, no fuss, just salon-quality results anytime.
- • **Fast-Acting Transformation:** Experience softer, smoother, and frizz-free hair in only 4 minutes—perfect for busy professionals.
- • **Sustainable & Long-Lasting:** Unlike surface treatments, K18 integrates with hair’s natural keratin for repair that won’t wash away.
- • **Revolutionary Biotech Repair:** Patented K18Peptide penetrates deep to reconnect broken hair chains for strength and elasticity.

## Overview

K18 Leave-In Molecular Hair Mask is a patented biotech treatment that repairs extreme hair damage from bleach, color, chemical services, and heat in just 4 minutes. Its unique K18Peptide penetrates the hair’s inner layers to reconnect broken keratin chains, restoring strength, softness, and elasticity for all hair types. This cruelty-free, no-rinse formula delivers lasting results that integrate with your hair’s natural structure, making it the go-to solution for professionals seeking salon-grade repair at home.

## Description

desertcart.com: K18 Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat : Beauty & Personal Care

Review: OMG! OMG ! OMG! K-18 FULFILLS ITS CLAIMS Read on! - I’m over 55 and have spent decades trying everything — from $9 to $144 per product — hoping for softer, healthier hair. I have 3a curls hidden under years of color, heat damage, and dryness. My hair would break and frizz so badly it looked like I had layers (I don’t). K18 is the first and only product that actually delivered on its promise to repair — not just coat — my hair. I was fully prepared to return this if it did not make a difference. It did. This isn’t a conditioner or mask. K18 uses a patented technology that works from the inside out. I used a clarifying shampoo, applied 6 pumps (very small pumps from the "try it" bottle!), finger-raked it through damp hair, waited 4 minutes, and then combed through. No rinsing, no other products. I let my hair air-dry, and it already felt softer and smoother with significantly less frizz. No fragrance -makes me happy. Important note: You do not need to rub this aggressively between your palms to "activate" it — that’s a common myth. Just rub your palms lightly so you can apply it evenly and let the science do the work. It works on the keratin molecules to repair your hair from the inside out. Friction is not going to make the molecules smaller. Don't know why people start these rumors. The next morning, I used my straightener on medium heat and was stunned. Instead of the usual dry straw, my hair was sleek, shiny, and bouncy. Even the ends curled beautifully — something I’ve never seen on my hair before. After four treatments, my hair now feels different, although the greatest results came after the very first use. My hair is softer, smoother, more manageable, with less frizz and more shine. Even in Florida’s 90°+ heat and humidity, it holds up — and I’m not using anything else but K18. A friend even asked to try it after seeing my results. It’s expensive, but absolutely worth it. I’ve already bought the larger bottle. I’m sticking with K18 — this changed everything for me. And to address the expense, the 50mL pump provides 50 pumps. That's 25 applications for me. My average thickness, long hair uses 2 full regular pumps. After the first 4 applications, you move to every 4 washes. That means after the first four treatments, I have 21 treatments more still in the pump bottle. For me, with super dry hair, that means it will last another 18-21 weeks since I only wash once a week, and an occasional "extra". I am going to guess I have taken at least $100 of products that did not work for me to the women's shelter over that time, meaning the waste was as much as this effective product that takes no time to use, packs easily in a suitcase, doesn't stink and IT WORKS! If you have super straight, silky hair, like Asian hair, or other non-porous hair, I do not think you are going to get the same results. You probably already have the kind of hair those of us with porous, damaged hair are looking for. Ask ChatGPT
Review: This Product is Worth The Cost - This product is pricey but the results are worth it. I have continued to repurchase this product as nothing else makes my hair stronger and healthier looking than when I use K19. Stop wasting your money on less priced items that don’t work like K19.

## Features

- An At-home Leave-In Treatment infused with the patented K18Peptide that renews hair to its most youthful, healthy state. Benefits: Works to repair even the most extreme damage caused by bleach and color, chemical services, and heat.
- Creates Like Hair Like New: Traveling into the inner-most layers of hair to reach the core polypeptide chains our revolutionary K18Peptide is just the right size and makeup to reconnect broken chains responsible for hair strength and elasticity.
- Renews All Hair Types: K18 doesn’t just hide damage or patch it up leaving hair brittle, it transforms even the most extreme damage into hair that looks and feels like new. K18 works on all hair types, all generations, all types of expression.
- Lasting Results That Won't Wash Away: The K18Peptide mimics the natural building blocks of hair and therefore is recognized as natural—so it’s able to integrate itself with the keratin chains to rebuild and restore hair immediately and over time.
- Back By Biotech: K18 is the world’s first patented biotech treatment that renews chemically damaged hair from the inside out in just 4 minutes, strength, softness, smoothness, and bounce are restored for hair that looks and feels like new.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09HR5KSR8 |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #132 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #2 in Hair Treatment Masks |
| Brand | K18 |
| Brand Name | K18 |
| Customer Reviews | 4.3 out of 5 stars 27,270 Reviews |
| Global Trade Identification Number | 00858511001289 |
| Hair Conditioner Type | Hair Conditioning Mask |
| Hair Type | All |
| 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 |
| Material Feature | Cruelty Free |
| Material Features | Cruelty Free |
| 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 |
| UPC | 858511001289 746559900490 858511001371 |

## Product Details

- **Brand:** K18
- **Hair Type:** All
- **Item Form:** Cream
- **Material Feature:** Cruelty Free

## Images

![Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat - Image 1](https://m.media-amazon.com/images/I/818atWOwLOL.jpg)

## Available Options

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

## Questions & Answers

**Q: How does the K18 mask work?**
A: The K18 Mask works as a treatment to reverse damage in 4 minutes. It’s powered by our biomimetic K18PEPTIDE to seamlessly fit in and reconnect broken polypeptide chains at the molecular level.

**Q: What is the K18PEPTIDE?**
A: K18PEPTIDE is a biotech-developed peptide that mimics hair’s structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during damage from bleach + color, chemical services, and heat.

**Q: Why skip conditioner?**
A: Conditioner leaves a film that blocks our peptide from penetrating effectively. Once the 4-minute wait time is up, feel free to use a conditioner, a leave-in, or any type of product.

**Q: I noticed there’s alcohol in the formula, isn’t that bad for you?**
A: We like to keep our formulas minimal, only using the exact amount of ingredients needed to get the peptide where it needs to go. Here the alcohol serves as an agent to optimize the hair environment for the K18 Mask to work on a deeper level.

**Q: When should I expect to see results?**
A: Most see results after 2-3 uses. The more damaged the hair, the more dramatic the results so it may vary depending on your hair type and level of damage.

## Customer Reviews

### ⭐⭐⭐⭐⭐ OMG! OMG ! OMG! K-18 FULFILLS ITS CLAIMS Read on!
*by G***G on June 25, 2025*

I’m over 55 and have spent decades trying everything — from $9 to $144 per product — hoping for softer, healthier hair. I have 3a curls hidden under years of color, heat damage, and dryness. My hair would break and frizz so badly it looked like I had layers (I don’t). K18 is the first and only product that actually delivered on its promise to repair — not just coat — my hair. I was fully prepared to return this if it did not make a difference. It did. This isn’t a conditioner or mask. K18 uses a patented technology that works from the inside out. I used a clarifying shampoo, applied 6 pumps (very small pumps from the "try it" bottle!), finger-raked it through damp hair, waited 4 minutes, and then combed through. No rinsing, no other products. I let my hair air-dry, and it already felt softer and smoother with significantly less frizz. No fragrance -makes me happy. Important note: You do not need to rub this aggressively between your palms to "activate" it — that’s a common myth. Just rub your palms lightly so you can apply it evenly and let the science do the work. It works on the keratin molecules to repair your hair from the inside out. Friction is not going to make the molecules smaller. Don't know why people start these rumors. The next morning, I used my straightener on medium heat and was stunned. Instead of the usual dry straw, my hair was sleek, shiny, and bouncy. Even the ends curled beautifully — something I’ve never seen on my hair before. After four treatments, my hair now feels different, although the greatest results came after the very first use. My hair is softer, smoother, more manageable, with less frizz and more shine. Even in Florida’s 90°+ heat and humidity, it holds up — and I’m not using anything else but K18. A friend even asked to try it after seeing my results. It’s expensive, but absolutely worth it. I’ve already bought the larger bottle. I’m sticking with K18 — this changed everything for me. And to address the expense, the 50mL pump provides 50 pumps. That's 25 applications for me. My average thickness, long hair uses 2 full regular pumps. After the first 4 applications, you move to every 4 washes. That means after the first four treatments, I have 21 treatments more still in the pump bottle. For me, with super dry hair, that means it will last another 18-21 weeks since I only wash once a week, and an occasional "extra". I am going to guess I have taken at least $100 of products that did not work for me to the women's shelter over that time, meaning the waste was as much as this effective product that takes no time to use, packs easily in a suitcase, doesn't stink and IT WORKS! If you have super straight, silky hair, like Asian hair, or other non-porous hair, I do not think you are going to get the same results. You probably already have the kind of hair those of us with porous, damaged hair are looking for. Ask ChatGPT

### ⭐⭐⭐⭐⭐ This Product is Worth The Cost
*by K***R on January 26, 2026*

This product is pricey but the results are worth it. I have continued to repurchase this product as nothing else makes my hair stronger and healthier looking than when I use K19. Stop wasting your money on less priced items that don’t work like K19.

### ⭐⭐⭐⭐⭐ Best hair product ever hands down
*by J***S on January 20, 2026*

My hair was looking pretty crappy. I remembered I ran out of this product. Got it again and within 2 uses my hair is back looking decent. I have incredibly fine hair and this does not weight it down, indeed it actually gives my hair body and makes it soft. It is easy to use. I think everyone should try it. Smells good too. Honestly, every k18 product I have tried it next level amazing.

## 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

---

## 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.tn/products/383765053-leave-in-molecular-repair-hair-mask-patented-lasting-repair-dry](https://www.desertcart.tn/products/383765053-leave-in-molecular-repair-hair-mask-patented-lasting-repair-dry)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-02-03*