---
product_id: 724953943
title: "K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml)"
brand: "k18"
price: "¥13181"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/724953943-k18-hair-mask-non-rinsing-0-5-fl-oz-15
store_origin: JP
region: Japan
---

# 4-minute patented peptide repair Leave-in, no rinse hydration Molecular K18 peptide technology K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml)

**Brand:** k18
**Price:** ¥13181
**Availability:** ❌ Out of Stock

## Summary

> 💥 Unlock your hair’s molecular glow-up in minutes!

## Quick Answers

- **What is this?** K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml) by k18
- **How much does it cost?** ¥13181 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/724953943-k18-hair-mask-non-rinsing-0-5-fl-oz-15)

## 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

- • **All-Hair-Type Savior:** From bleached to chemically treated, this mask revives every strand, every texture, every style.
- • **Leave-In, Stress-Free:** No rinsing needed—lock in moisture and repair all day while you live your best life.
- • **Rapid 4-Minute Repair:** Experience salon-grade molecular restoration in just 4 minutes—because your time is precious.
- • **Next-Gen Peptide Power:** K18’s patented peptide penetrates deep to reconnect broken keratin chains for visibly stronger, resilient hair.
- • **Cruelty-Free Confidence:** Ethically crafted with zero animal testing, because beauty should be guilt-free.

## Overview

K18 Hair Mask is a revolutionary 15 ml leave-in treatment that uses patented molecular peptides to repair extreme hair damage caused by bleaching, coloring, heat, and chemicals. Designed for all hair types, it penetrates deep to reconnect broken keratin chains, restoring strength, elasticity, and youthful vibrancy in just 4 minutes without rinsing. Cruelty-free and easy to use, it’s the ultimate at-home solution for professional-grade hair rejuvenation.

## Description

Product description Hair Mask, No Rinse, 0.5 fl oz (15 ml), Leave-in molecular repair hair mask, 0.5 fl oz (15 ml) Ingredients Packaged 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 Shower: 1 - Do not shampoo, condition. Allow towel to dry completely. 2. Start with the pump K18 mask and add as needed according to the length and thickness. 3 Work evenly one at a time from the tip to the root. Sit and wake up for 4 minutes. 5 Do not rinse. 6 Style is normal See more

Review: Un masque vraiment parfait de A à Z ! Vous l’appliquez sur cheveux mouillés, vous laissez poser 3 minutes puis vous sécher vos cheveux… résultats bluffant de la première utilisation! Il va venir réparer vos cheveux en profondeur idéal pour les cheveux endommagés ! Il va sauver vos cheveux !
Review: This is a fake. There are certain ways to check by the packaging if it is the real k18. Do your research. I thought the price seemed too good to be true. Well, it is!

## Features

- K18 リーブインリペア ヘアマスク トリートメント 乾燥やダメージを受けた髪を修復 - 漂白剤、カラー、ケミカルサービス、熱による髪のダメージを元に戻すために4分
- 特許取得済みのK18ペプチドを注入した在宅休暇トリートメントで、髪を最も若々しく健康的な状態に再生します。 利点:漂白剤や色、化学薬品、熱によって引き起こされる最も極端な損傷でも修復します。
- 【新品のような髪をつくります】最も内側の髪の層に移動してコアポリペプチドチェーンに到達する当社の革新的なK18ペプチドは、髪の強さと弾力性を担う壊れたチェーンを再接続するのにちょうどいいサイズとメイクです。
- 【すべての髪質を一新】K18はダメージを隠したりパッチを当てたりして髪を脆くするだけでなく、最も極端なダメージでも新品のような見た目と感触の髪に変えます。 K18はすべての髪型、すべての世代、あらゆるタイプの表情に作用します。
- 【洗い流さない持続効果】K18ペプチドは髪の自然な構成要素を模倣し、自然と認識され、ケラチンチェーンと一体化し、時間の経過とともに髪をすぐに再構築し、復元することができます。

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09HR5KSR8 |
| ASIN  | B09HR5KSR8 |
| Amazon Bestseller | #144,510 in Beauty ( See Top 100 in Beauty ) #547 in Hair Treatment Masks |
| Customer Reviews | 4.3 4.3 out of 5 stars (18,123) |
| Date First Available | September 12, 2022 |
| Date First Available  | September 12, 2022 |
| Hair Type | All |
| Item Form | Cream |
| Item model number  | K18-31007 |
| Manufacturer  | K18 |
| Product Dimensions | 3.48 x 3.48 x 8.08 cm; 28.35 g |
| Product Dimensions  | 3.48 x 3.48 x 8.08 cm; 28.35 g |
| Scent Name | Fresh |
| Size Name | 15 ml (Pack of 1) |
| Special Features | 動物実験はしていません |
| Target Gender | Unisex |

## Product Details

- **Brand:** K18
- **Hair Type:** All
- **Item Form:** Cream
- **Material Feature:** Natural
- **Product Benefits:** K18PEPTTMテクノロジーで、漂白、発色、熱による髪のダメージを逆転させます。

## Images

![K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml) - Image 1](https://m.media-amazon.com/images/I/61cQczOEzNL.jpg)
![K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml) - Image 2](https://m.media-amazon.com/images/I/71DQDGVQ4WL.jpg)
![K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml) - Image 3](https://m.media-amazon.com/images/I/71YDb0y+CsL.jpg)
![K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml) - Image 4](https://m.media-amazon.com/images/I/818atWOwLOL.jpg)
![K18 Hair Mask, Non-Rinsing 0.5 fl oz (15 ml), Leave-in Molecular Repair Hair Mask, 0.5 fl oz (15 ml) - Image 5](https://m.media-amazon.com/images/I/819q8D-jLSL.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

### ⭐⭐⭐⭐ Review
*by S***A on February 15, 2025*



### ⭐⭐⭐⭐⭐ Review
*by A***N on November 21, 2025*

Un masque vraiment parfait de A à Z ! Vous l’appliquez sur cheveux mouillés, vous laissez poser 3 minutes puis vous sécher vos cheveux… résultats bluffant de la première utilisation! Il va venir réparer vos cheveux en profondeur idéal pour les cheveux endommagés ! Il va sauver vos cheveux !

### ⭐ Review
*by S***F on July 24, 2024*

This is a fake. There are certain ways to check by the packaging if it is the real k18. Do your research. I thought the price seemed too good to be true. Well, it is!

## 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.jp/products/724953943-k18-hair-mask-non-rinsing-0-5-fl-oz-15](https://www.desertcart.jp/products/724953943-k18-hair-mask-non-rinsing-0-5-fl-oz-15)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-06*