{"product_id":"keratin-intensive-rescue-hair-mask","title":"Keratin Intensive Rescue Hair Mask","description":"\u003cstyle\u003e\n  .mc-collapse { border-top: 1px solid rgba(19,19,19,0.12); }\n  .mc-collapse:last-of-type { border-bottom: 1px solid rgba(19,19,19,0.12); }\n  .mc-collapse summary {\n    display: flex; justify-content: space-between; align-items: center;\n    cursor: pointer; list-style: none; padding: 16px 2px;\n    font-family: 'Raleway', sans-serif; font-weight: 900; text-transform: uppercase;\n    letter-spacing: -0.01em; font-size: 14px; color: #131313;\n  }\n  .mc-collapse summary::-webkit-details-marker { display: none; }\n  .mc-collapse summary::after {\n    content: '+'; color: #A8882E; font-family: 'Raleway', sans-serif;\n    font-weight: 900; font-size: 20px; line-height: 1; margin-left: 12px; flex-shrink: 0;\n  }\n  .mc-collapse[open] summary::after { content: '-'; }\n\u003c\/style\u003e\n\u003cdiv style=\"font-family: 'Raleway', sans-serif; color: #131313;\"\u003e\n\u003cdiv style=\"border-left: 3px solid #A8882E; padding: 4px 0 4px 18px; margin-bottom: 24px;\"\u003e\n\u003cp style=\"font-family: 'Raleway', sans-serif; font-weight: 900; text-transform: uppercase; letter-spacing: -0.02em; font-size: 18px; color: #131313; margin: 0; line-height: 1.4;\"\u003eWhen conditioner isn't enough. The intensive weekly treatment for hair that's been through it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 14px; color: #333; line-height: 1.8; margin: 0 0 16px 0;\"\u003eChlorine, hard water, heat styling, sun exposure, and daily friction degrade the hair's keratin structure over time. Each strand loses protein, becomes more porous, and breaks more easily. Regular conditioner maintains  it doesn't rebuild. When damage has accumulated to the point where your hair feels dry, rough, and snaps when you comb it, you need a treatment rather than maintenance.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #333; line-height: 1.8; margin: 0 0 16px 0;\"\u003eThe Keratin Intensive Rescue Hair Mask delivers concentrated hydrolysed keratin and argan oil into the hair shaft during a 5–10 minute treatment window. Keratin fills the structural gaps where protein has been lost. Argan oil seals the cuticle and restores the shine that damage strips away. Panthenol adds moisture to the cortex so repaired hair stays flexible rather than brittle.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #333; line-height: 1.8; margin: 0 0 24px 0;\"\u003eUse once a week in place of your regular conditioner. Leave on for 5–10 minutes. Rinse. The difference is immediate, and it compounds with weekly use.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; gap: 0; margin-bottom: 34px; background: #253545; border-radius: 3px; overflow: hidden;\"\u003e\n\u003cdiv style=\"flex: 1; padding: 22px 16px; text-align: center; border-right: 1px solid rgba(255,255,255,0.08);\"\u003e\n\u003cp style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 26px; letter-spacing: -0.02em; color: #c9a96e; margin: 0 0 2px 0;\"\u003e1x\u003c\/p\u003e\n\u003cp style=\"font-size: 10px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,0.5); margin: 0;\"\u003ePer Week Treatment\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; padding: 22px 16px; text-align: center; border-right: 1px solid rgba(255,255,255,0.08);\"\u003e\n\u003cp style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 26px; letter-spacing: -0.02em; color: #c9a96e; margin: 0 0 2px 0;\"\u003e5–10min\u003c\/p\u003e\n\u003cp style=\"font-size: 10px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,0.5); margin: 0;\"\u003eTreatment Time\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; padding: 22px 16px; text-align: center;\"\u003e\n\u003cp style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 26px; letter-spacing: -0.02em; color: #c9a96e; margin: 0 0 2px 0;\"\u003e170ml\u003c\/p\u003e\n\u003cp style=\"font-size: 10px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,0.5); margin: 0;\"\u003e12+ Weeks Supply\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 34px;\"\u003e\n\u003cdiv style=\"display: flex; padding: 11px 0; border-bottom: 2px solid rgba(19,19,19,0.12);\"\u003e\n\u003cspan style=\"font-size: 11px; font-weight: bold; letter-spacing: 1.2px; text-transform: uppercase; color: #253545; width: 130px; flex-shrink: 0;\"\u003eSuited to\u003c\/span\u003e \u003cspan style=\"font-size: 14px; color: #333;\"\u003eAll hair types  especially dry, damaged, or chemically processed hair\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 11px 0; border-bottom: 2px solid rgba(19,19,19,0.12);\"\u003e\n\u003cspan style=\"font-size: 11px; font-weight: bold; letter-spacing: 1.2px; text-transform: uppercase; color: #253545; width: 130px; flex-shrink: 0;\"\u003eHair feel\u003c\/span\u003e \u003cspan style=\"font-size: 14px; color: #333;\"\u003eThick, rich mask  coats each strand for deep penetration\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 11px 0; border-bottom: 2px solid rgba(19,19,19,0.12);\"\u003e\n\u003cspan style=\"font-size: 11px; font-weight: bold; letter-spacing: 1.2px; text-transform: uppercase; color: #253545; width: 130px; flex-shrink: 0;\"\u003eAroma\u003c\/span\u003e \u003cspan style=\"font-size: 14px; color: #333;\"\u003eElegant white floral on a fruity background\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 11px 0; border-bottom: 2px solid rgba(19,19,19,0.12);\"\u003e\n\u003cspan style=\"font-size: 11px; font-weight: bold; letter-spacing: 1.2px; text-transform: uppercase; color: #253545; width: 130px; flex-shrink: 0;\"\u003eConcern\u003c\/span\u003e \u003cspan style=\"font-size: 14px; color: #333;\"\u003eDry hair, breakage, split ends, damaged or colour-treated hair\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 11px 0;\"\u003e\n\u003cspan style=\"font-size: 11px; font-weight: bold; letter-spacing: 1.2px; text-transform: uppercase; color: #253545; width: 130px; flex-shrink: 0;\"\u003eRitual step\u003c\/span\u003e \u003cspan style=\"font-size: 14px; color: #333;\"\u003eWeekly treatment  replaces conditioner once per week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdetails open=\"\" class=\"mc-collapse\"\u003e\n\u003csummary\u003eHow to Use\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 16px;\"\u003e\n\u003cdiv style=\"border-left: 3px solid #A8882E; padding: 16px 18px; background: #F0ECE4; margin-top: 16px;\"\u003e\n\u003cp style=\"font-size: 11px; font-weight: bold; letter-spacing: 1.5px; text-transform: uppercase; color: #a8882e; margin: 0 0 12px 0;\"\u003eOnce Weekly — In Place of Conditioner\u003c\/p\u003e\n\u003cdiv style=\"display: flex; gap: 12px; padding: 6px 0; align-items: flex-start;\"\u003e\n\u003cspan style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 15px; color: #131313; min-width: 18px;\"\u003e1\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; color: #333; margin: 0; line-height: 1.7;\"\u003eShampoo with \u003ca href=\"\/products\/strength-volume-shampoo\" style=\"color: #131313; text-decoration: underline;\"\u003eStrength \u0026amp; Volume Shampoo\u003c\/a\u003e and rinse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; padding: 6px 0; align-items: flex-start;\"\u003e\n\u003cspan style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 15px; color: #131313; min-width: 18px;\"\u003e2\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; color: #333; margin: 0; line-height: 1.7;\"\u003eSqueeze excess water from the hair  the mask works best on damp, not dripping, hair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; padding: 6px 0; align-items: flex-start;\"\u003e\n\u003cspan style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 15px; color: #131313; min-width: 18px;\"\u003e3\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; color: #333; margin: 0; line-height: 1.7;\"\u003eApply generously to the lengths and ends  avoid the roots to maintain volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; padding: 6px 0; align-items: flex-start;\"\u003e\n\u003cspan style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 15px; color: #131313; min-width: 18px;\"\u003e4\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; color: #333; margin: 0; line-height: 1.7;\"\u003eLeave on for 5–10 minutes. For severely damaged hair, up to 15.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; padding: 6px 0; align-items: flex-start;\"\u003e\n\u003cspan style=\"font-family: 'Raleway', sans-serif; font-weight: 900; font-size: 15px; color: #131313; min-width: 18px;\"\u003e5\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; color: #333; margin: 0; line-height: 1.7;\"\u003eRinse thoroughly with cool water  cold water closes the cuticle, locking the keratin and argan oil inside.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"mc-collapse\" open=\"\"\u003e\n\u003csummary\u003eKey Ingredients\u003c\/summary\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px;\"\u003e\n\u003cdiv style=\"border-left: 3px solid #A8882E; padding: 14px 16px; background: #F0ECE4;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 4px 0;\"\u003eHydrolysed Keratin\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #555; margin: 0; line-height: 1.6;\"\u003eFills structural gaps in the hair shaft where protein has been lost to damage. Restores strength, diameter, and resilience to each individual strand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #A8882E; padding: 14px 16px; background: #F0ECE4;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 4px 0;\"\u003eArgan Oil\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #555; margin: 0; line-height: 1.6;\"\u003eSeals the hair cuticle after the keratin has filled the damage. Restores natural shine and prevents further moisture loss from the repaired strands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #A8882E; padding: 14px 16px; background: #F0ECE4;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 4px 0;\"\u003ePanthenol (Pro-Vitamin B5)\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #555; margin: 0; line-height: 1.6;\"\u003eAdds deep moisture to the hair cortex. Prevents the brittleness that leads to breakage and split ends.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #A8882E; padding: 14px 16px; background: #F0ECE4;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 4px 0;\"\u003eTocopherol (Vitamin E)\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #555; margin: 0; line-height: 1.6;\"\u003eAntioxidant that protects the argan oil from oxidation and shields the hair from the environmental stress that caused the damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"mc-collapse\"\u003e\n\u003csummary\u003eFull Ingredient List — INCI\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 16px; font-size: 12px; color: #555; line-height: 1.7;\"\u003e\n\u003cp style=\"margin: 0;\"\u003eAqua, Cetearyl Alcohol, Behentrimonium Chloride, Hydrolyzed Keratin, Argania Spinosa (Argan) Kernel Oil, Panthenol, Glycerin, Tocopherol, Citric Acid, Ethylhexylglycerin, Phenoxyethanol.\u003c\/p\u003e\n\u003cp style=\"margin: 16px 0 0 0; font-style: italic;\"\u003eCOSMOS NATURAL certified by ECOCERT Greenlife\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\" class=\"mc-collapse\"\u003e\n\u003csummary\u003eQuestions\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 16px;\"\u003e\n\u003cdiv style=\"padding: 14px 0; border-bottom: 1px solid rgba(19,19,19,0.1);\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 6px 0;\"\u003eHow is this different from the Volume Boost Conditioner?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.7;\"\u003eThe \u003ca href=\"\/products\/volume-boost-conditioner\" style=\"color: #131313; text-decoration: underline;\"\u003eConditioner\u003c\/a\u003e is lightweight daily conditioning  it maintains and adds volume. This mask is intensive weekly repair  it rebuilds damaged structure. Use the conditioner after every wash, and replace it with this mask once a week.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 14px 0; border-bottom: 1px solid rgba(19,19,19,0.1);\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 6px 0;\"\u003eCan I leave it on longer than 10 minutes?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.7;\"\u003eYes, up to 15 minutes for severely damaged hair. Beyond that there's no additional benefit  the hair shaft has absorbed what it can.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 14px 0; border-bottom: 1px solid rgba(19,19,19,0.1);\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 6px 0;\"\u003eWill this weigh down fine hair?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.7;\"\u003eApply only to the lengths and ends, not the roots, and rinse thoroughly. Fine hair gets the repair benefit without the weight  the keratin adds structure, not heaviness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 14px 0;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #131313; margin: 0 0 6px 0;\"\u003eHow long does one tub last?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.7;\"\u003eAt once per week on medium-length hair, the 170ml tub lasts approximately 12+ weeks  nearly 3 months.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #253545; border-radius: 3px; padding: 32px 24px; text-align: center; margin-top: 34px;\"\u003e\n\u003cp style=\"font-family: 'Raleway', sans-serif; font-weight: 900; text-transform: uppercase; letter-spacing: -0.02em; font-size: 19px; color: #ffffff; margin: 0 0 6px 0; line-height: 1.3;\"\u003eRescue What Damage Has Taken. One Treatment a Week.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: rgba(255,255,255,0.7); margin: 0 0 20px 0;\"\u003ePair with the Strength \u0026amp; Volume Shampoo and Scalp Scrub for the complete Reign system.\u003c\/p\u003e\n\u003ca style=\"display: inline-block; border: 1px solid #A8882E; color: #a8882e; font-size: 12px; font-weight: bold; letter-spacing: 1px; text-transform: uppercase; text-decoration: none; padding: 12px 28px;\" href=\"\/collections\/reign-hair-care\"\u003eExplore Reign →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Selfnamed","offers":[{"title":"Default","offer_id":43315357581430,"sku":"187597","price":19.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/3943\/9478\/files\/GFviLv-Y8R2CYApObjx8bUoQUcOnTDEJ.jpg?v=1782812282","url":"https:\/\/merculine.com\/products\/keratin-intensive-rescue-hair-mask","provider":"Merculine ","version":"1.0","type":"link"}