{"product_id":"k18-leave-in-molecular-repair-hair-mask-50ml","title":"K18 Leave-In Molecular Repair Hair Mask 50ml","description":"\u003cp\u003eK18 Leave-In Molecular Repair Hair Mask 50ml is the full-size version of the cult bond-repair treatment that helped redefine the at-home haircare category. Built around the patented K18PEPTIDE — a bioengineered peptide designed to slot back into broken keratin chains — the mask works in just four minutes to help reverse damage from bleach, colour, chemical services and heat styling. The 50ml format is the standard professional size, with around 30 single-use applications depending on hair length and density.\u003c\/p\u003e\n\n\u003ch2\u003eAbout K18\u003c\/h2\u003e\n\u003cp\u003eK18 is a US biotech-led haircare brand that launched in 2020 after roughly a decade of bond-repair research. The brand's hero ingredient, K18PEPTIDE (sh-Oligopeptide-78), is a small, lab-developed peptide engineered to mimic the structure of hair's own keratin and reach into the inner cortex, where it helps reconnect broken polypeptide chains and disulfide bonds responsible for strength and elasticity.\u003c\/p\u003e\n\n\u003ch2\u003eKey ingredients\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eK18PEPTIDE (sh-Oligopeptide-78):\u003c\/strong\u003e The patented bioactive peptide at the heart of the formula, designed to reach into the cortex of the hair shaft and help repair broken bonds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydrolyzed Wheat Protein \u0026amp; Wheat Starch:\u003c\/strong\u003e Add temporary smoothness and help the mask deposit evenly along the hair shaft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBehentrimonium Chloride:\u003c\/strong\u003e A conditioning agent that helps the formula slip through tangles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTocopherol (Vitamin E):\u003c\/strong\u003e Added antioxidant support for the formula.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat it does\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHelps repair the look and feel of damaged hair from within over a 4–6 wash cycle.\u003c\/li\u003e\n  \u003cli\u003eRestores softness, bounce and elasticity to chemically treated and heat-stressed hair.\u003c\/li\u003e\n  \u003cli\u003eReduces the appearance of frizz and split-end-style breakage.\u003c\/li\u003e\n  \u003cli\u003eLeave-in formula — no rinsing required, so the peptide stays in contact with the hair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho it's for\u003c\/h2\u003e\n\u003cp\u003eDesigned for anyone whose hair is showing signs of damage — bleached blondes, frequent colour clients, relaxed or chemically straightened hair, or hair that feels dry and gummy after heat tools. Suitable for all hair types, all hair textures and colour-treated hair, and safe for use after relaxers, perms and keratin services.\u003c\/p\u003e\n\n\u003ch2\u003eHow to use\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eShampoo thoroughly. Do not condition.\u003c\/li\u003e\n  \u003cli\u003eTowel-dry the hair well — the formula works best on damp, not soaking wet, hair.\u003c\/li\u003e\n  \u003cli\u003eDispense one to three pumps depending on length and density (use the brand's pump-count guide for your length).\u003c\/li\u003e\n  \u003cli\u003eEmulsify between the palms, then work through the hair starting at the ends and moving up towards mid-lengths and roots.\u003c\/li\u003e\n  \u003cli\u003eLeave for at least 4 minutes — do not rinse.\u003c\/li\u003e\n  \u003cli\u003eAfter the 4-minute wait, apply any other styling product (leave-in, oil, heat protectant) as normal and style.\u003c\/li\u003e\n  \u003cli\u003eUse on every wash for the first 4–6 washes for the most noticeable repair, then as a maintenance treatment once or twice a week.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 50ml\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Leave-in repair mask\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHair type:\u003c\/strong\u003e All types, especially damaged, colour-treated and chemically processed hair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e K18 Biomimetic Hairscience\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Perfume Shop S","offers":[{"title":"Default Title","offer_id":58260819345756,"sku":"T959258","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0882\/0378\/8636\/files\/K18-Leave-In-Molecular-Repair-Hair-Mask-50ml-8.jpg?v=1783881285","url":"https:\/\/vinceproject.com\/fr\/products\/k18-leave-in-molecular-repair-hair-mask-50ml","provider":"Vitrax ","version":"1.0","type":"link"}