--- product_id: 432305450 title: "K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask" brand: "k18" price: "$2.39" currency: USD in_stock: false reviews_count: 13 url: https://www.desertcart.us/products/432305450-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask store_origin: US region: United States of America --- # 150 ml volume 19.2 x 4.8 x 4.7 cm 0.21 kg K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask **Brand:** k18 **Price:** $2.39 **Availability:** ❌ Out of Stock ## Summary > 💁‍♀️ Unlock the secret to salon-worthy hair at home! ## Quick Answers - **What is this?** K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask by k18 - **How much does it cost?** $2.39 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/432305450-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask) ## 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 - • **Aquatic Freshness:** Enjoy a refreshing aquatic scent that invigorates your senses. - • **Transformative Repair:** Revitalize your hair with cutting-edge biomimetic technology. - • **Effortless Application:** Leave-in formula for hassle-free, all-day nourishment. - • **Strengthens & Protects:** Fortify your strands against damage and breakage. - • **Lightweight & Non-Greasy:** Perfect for daily use without weighing your hair down. ## Overview The K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask is a revolutionary hair treatment designed to repair and strengthen damaged hair. With a lightweight, leave-in formula and a refreshing aquatic scent, this 150 ml mask utilizes advanced biomimetic technology to deliver salon-quality results right at home. Perfect for busy professionals seeking effortless hair care solutions. ## Description Product Description K18 Leave-In Hair Repair Mask (150ml) is a breakthrough hair treatment designed to reverse damage in just 4 minutes. Formulated with biomimetic K18 Peptide Technology, this professional-grade treatment restores strength, elasticity, and smoothness to color-treated, heat-damaged, or chemically processed hair. The lightweight, leave-in formula penetrates deep into the hair shaft for long-lasting repair without buildup. Perfect for all hair types, it helps achieve healthier, stronger, and more resilient hair with every use. Experience salon-quality transformation at home! Ingredients Available on package Directions Use on wet, cleansed hair. Leave on for a few minutes, then rinse thoroughly. Safety Warning For external use only. Review: Heat damaged curls - bought the 50ml then the 150ml - So I have really curly/ coarse hair and I straighten it so often that the front especially the fridge literally just stays straight. I initially bought the 50ml and I wasn’t convinced it would moisturise my hair especially if I just shampoo with no conditioner as the instructions say because my hair NEEDS moisture and is low porosity. But let me just say that wow it does moisturise and it leaves my hair so juicy, I add my usual products after 10mins of air drying. I haven’t seen too much repair of the curls at the front but it has really helped with my bleached ends which have split ends. I have A LOT of hair so I need to use way more than the 2 pumps per section and this bigger bottle definitely helps with that. Very expensive but so is salon visits. Also, the bigger bottle DOES cream up after rubbing so I’m not sure why other reviews say it’s a different formula. Very happy with the product but wish it was less expensive. Hopefully it brings rest of my curls back but ngl it has just encouraged me to continue straightening without fear of catastrophic damage haha. Love it! Review: The best treatment! - This is the best treatment. It’s expensive but you see immediate results. It transformed my hair from the first application. My hair was breaking and was becoming impossible to detangle it without losing an unbelievable amount of hair in every wash. Now my curls are bouncy and my hair feel so much healthier. I have also bought the shampoos to complement the treatment. It’s an amazing product; expensive but worth it! ## Features - K18 Leave-In Repair Hair Mask Treatment to Repair Dry or Damaged Hair - 4 Minutes to Reverse Hair Damage from Bleach, Color, Chemical Services and Heat - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09B1VMB9F | | Active Ingredients | K18 Peptide | | Age Range Description | Adult | | Age range (description) | Adult | | Benefits | Clinically proven to repair, restore strength and sustain hair damaged by bleach, color, and chemicals. | | Best Sellers Rank | 142,735 in Beauty ( See Top 100 in Beauty ) 427 in Hair Masks | | Brand | K18 | | Brand Name | K18 | | Customer Reviews | 4.4 out of 5 stars 1,273 Reviews | | Global Trade Identification Number | 00858511001135, 85851100113500 | | Hair Conditioner Type | Hair Conditioning Mask | | Hair Type | Damaged | | Hair type | Damaged | | Item Dimensions | 48 x 48 x 188 millimetres | | Item Form | Cream | | Item Type Name | Hair Mask | | Item Weight | 1 Ounces | | Item form | Cream | | Liquid Volume | 150 Millilitres | | Manufacturer | K18 | | Manufacturer Part Number | K18-31006​ | | Material Features | Cruelty Free | | Material Type Free | Animal-derived | | Material feature | Cruelty Free | | Model Number | K18-31006​ | | Number of Items | 1 | | Package Type Name | Bottle | | Product Warranty | 2 year manufacturer | | Product benefits | Clinically proven to repair, restore strength and sustain hair damaged by bleach, color, and chemicals. Product benefits Clinically proven to repair, restore strength and sustain hair damaged by bleach, color, and chemicals. See more | | Recommended Uses For Product | Damaged Hair Repair | | Scent Name | Fresh | | Size | 150 ml (Pack of 1) | | Special Features | Hair Repair, Leave In | | UPC | 858511001135 | | Unit Count | 150.0 millilitre | ## Product Details - **Brand:** K18 - **Item form:** Cream - **Material feature:** Cruelty Free - **Hair type:** Damaged - **Product benefits:** Clinically proven to repair, restore strength and sustain hair damaged by bleach, color, and chemicals. ## Images ![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask - Image 1](https://m.media-amazon.com/images/I/61Cq8MZWkIL.jpg) ![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask - Image 2](https://m.media-amazon.com/images/I/61KOg9EUPuS.jpg) ![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask - Image 3](https://m.media-amazon.com/images/I/81eZ8pqSD2L.jpg) ![K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask - Image 4](https://m.media-amazon.com/images/I/61eNUjWIhPS.jpg) ## Available Options This product comes in different **Size, Scent** options. ## Questions & Answers **Q: Just wonder if this is a real product?** A: Very real...brilliant product, definitely search first as prices can vary a lot. I recently bought the 150ml for £62 . You only need a small amount x once a week so it works out good value. It's definitely repairing my bleach damaged hair **Q: How come this is so cheap? Its nearly the same price as the 50ml bottle of k1k** A: It’s effective but not as strong as the one in the hairdresser **Q: It is an original product?** A: This is the first time I have bought it so can’t compare. All I can say is that it works and results get better after about three uses for my thick but fine frizzy hair. I don’t use it all the time as it is a bit heavy for my hair after a while so don’t use a huge amount. **Q: Help!! Is this k18 50ml the same ingredients as the 50ml size for £39** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Heat damaged curls - bought the 50ml then the 150ml *by A***C on 28 February 2024* So I have really curly/ coarse hair and I straighten it so often that the front especially the fridge literally just stays straight. I initially bought the 50ml and I wasn’t convinced it would moisturise my hair especially if I just shampoo with no conditioner as the instructions say because my hair NEEDS moisture and is low porosity. But let me just say that wow it does moisturise and it leaves my hair so juicy, I add my usual products after 10mins of air drying. I haven’t seen too much repair of the curls at the front but it has really helped with my bleached ends which have split ends. I have A LOT of hair so I need to use way more than the 2 pumps per section and this bigger bottle definitely helps with that. Very expensive but so is salon visits. Also, the bigger bottle DOES cream up after rubbing so I’m not sure why other reviews say it’s a different formula. Very happy with the product but wish it was less expensive. Hopefully it brings rest of my curls back but ngl it has just encouraged me to continue straightening without fear of catastrophic damage haha. Love it! ### ⭐⭐⭐⭐⭐ The best treatment! *by L***A on 15 July 2023* This is the best treatment. It’s expensive but you see immediate results. It transformed my hair from the first application. My hair was breaking and was becoming impossible to detangle it without losing an unbelievable amount of hair in every wash. Now my curls are bouncy and my hair feel so much healthier. I have also bought the shampoos to complement the treatment. It’s an amazing product; expensive but worth it! ### ⭐⭐⭐⭐⭐ Wow! *by B***K on 8 June 2023* After frying my hair with bleach it was snapping off and so dry, I’d tried Olaplex treatments prior to this and the K18 blows it out of the water. Results are immediately obvious, my hair looked fuller and smoother after just one use. As my hair was in such a bad state I used this after every wash for 2 months along with their shampoo and my hair is finally starting to regain health. Impressive stuff! ## Frequently Bought Together - K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask - K18 Molecular Repair Hair Oil - Weightless Oil for Stronger, Healthier Hair, 30 ml --- ## 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.us/products/432305450-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask](https://www.desertcart.us/products/432305450-k18-biomimetic-hairscience-leave-in-molecular-repair-hair-mask) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-15*