{"product_id":"k18-full-size-leave-in-molecular-repair-hair-mask-1-7-fl-oz","title":"K18 Full-Size Leave-In Molecular Repair Hair Mask, 1.7 Fl.Oz","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eA four-minute leave-in treatment that rebuilds hair from the inside out. K18's patented biomimetic peptide slips into the keratin structure and reconnects the bonds broken by bleach, color, chemical services and heat — so strength, softness and bounce come back for real, not just until the next wash.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eWhy it works\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe damage you can see (frizz, breakage, straw-like ends) starts at the molecular level, where keratin chains have been snapped apart. Most treatments coat the outside of the strand and wash away. K18PEPTIDE™ is small enough to reach the cortex, where it reconnects both polypeptide chains — and with them the disulfide bonds — restoring core strength along the full length and width of each hair.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eKey benefits\u003c\/h4\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eReverses damage in 4 minutes\u003c\/strong\u003e — no rinsing, no wrapping, no waiting under a towel\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eResults that last\u003c\/strong\u003e — repair stays put through your next wash instead of rinsing down the drain\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorks on every hair type\u003c\/strong\u003e — fine, thick, straight, curly, coily, gray, virgin or bleached\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eProgressive improvement\u003c\/strong\u003e — most people notice a difference by the second or third use\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003epH-optimized (5.0–6.0)\u003c\/strong\u003e to keep the cuticle calm and proteins in their strongest state\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eVegan, color-safe, cruelty-free\u003c\/strong\u003e — won't strip or shift your tone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eWho it's for\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eAnyone whose hair has been through bleach or lightening, frequent coloring, keratin or relaxing services, or daily heat styling. Especially worth it after a salon appointment — use it for the next 4–6 washes to lock in the repair.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eHow to use\u003c\/h4\u003e\n\u003col dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eShampoo. \u003cstrong\u003eSkip conditioner\u003c\/strong\u003e — it leaves a film that blocks the peptide.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTowel-dry thoroughly. Damp, not dripping.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eApply 1–3 pumps depending on length and density, starting at the ends and working up.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWait 4 minutes. Don't rinse, don't comb.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStyle as usual. Add any products you like after the four minutes are up.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eUse for 4–6 consecutive washes, then as needed. Less is more — overapplying won't speed anything up.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eGood to know\u003c\/h4\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e50 ml (full size) — roughly 50–100 applications depending on hair length\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDon't rinse out; it stays in\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIf you use a lot of styling products, clarify first so the peptide can get through\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCan be layered with conditioner or leave-ins \u003cem\u003eafter\u003c\/em\u003e the 4-minute mark\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eIngredients:\u003c\/strong\u003e Water (Aqua), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol, Amyl Salicylate, Benzaldehyde.\u003c\/p\u003e","brand":"K18","offers":[{"title":"Default Title","offer_id":44309380759617,"sku":"K18-LI-MRHM","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/7346\/5409\/files\/00_Mask.webp?v=1786004562","url":"https:\/\/healthandbeautymart.com\/products\/k18-full-size-leave-in-molecular-repair-hair-mask-1-7-fl-oz","provider":"Health \u0026 Beauty Mart","version":"1.0","type":"link"}