{"product_id":"kerastase-fondant-extentioniste-strengthening-conditioner-200-ml-repairs-lengths-seals-split-ends","title":"KÉRASTASE Fondant Extentioniste Strengthening Conditioner 200 ml — Repairs Lengths, Seals Split Ends","description":"\u003cp\u003e\u003cstrong\u003eKÉRASTASE Fondant Extentioniste is a strengthening rinse-out conditioner formulated with amino acids, Creatine R and ceramides to detangle, reinforce damaged lengths and help seal split ends for visibly healthier, longer hair.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis rich, restorative conditioner is part of KÉRASTASE's Extentioniste line, created to support fragile, over-processed or long hair that needs reinforcement from mid-length to ends. It works after cleansing to smooth cuticles, add manageability, and improve the texture of weakened strands without weighing hair down. Use it alongside the Extentioniste Shampoo and the specialist hair mask for a complete routine addressing tensile strength and length retention.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this conditioner repair and protect fragile lengths?\u003c\/h3\u003e\n\u003cp\u003eThe formula blends amino acids and Creatine R to bolster hair fibers while ceramides help rebuild the surface and lock in moisture. It smooths raised cuticles to reduce friction, which can lower breakage and make hair easier to comb when wet.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCreatine R supports the internal structure of hair fibers for improved resistance.\u003c\/li\u003e\n  \u003cli\u003eAmino acids help restore protein balance in weakened areas.\u003c\/li\u003e\n  \u003cli\u003eCeramides seal the cuticle, aiding shine and moisture retention.\u003c\/li\u003e\n  \u003cli\u003eDetangling agents reduce knots and mechanical damage during brushing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it weigh my hair down or leave residue?\u003c\/h3\u003e\n\u003cp\u003eFondant Extentioniste is formulated as a creamy rinse-out conditioner that conditions without heavy buildup when used as directed. Applied from mid-length to ends and rinsed after a short leave-in time, it leaves strands soft and manageable while preserving natural movement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse a quarter-sized amount for medium lengths; adjust for hair density.\u003c\/li\u003e\n  \u003cli\u003eApply mainly to mid-lengths and ends to avoid root heaviness.\u003c\/li\u003e\n  \u003cli\u003eRinse thoroughly after 2–3 minutes to prevent product buildup.\u003c\/li\u003e\n  \u003cli\u003ePair with the matching shampoo for balanced cleansing and conditioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I incorporate it into my haircare routine for best results?\u003c\/h3\u003e\n\u003cp\u003eFor an effective regimen, start with the Extentioniste Shampoo, then apply the Fondant Extentioniste conditioner to wet hair, focusing on problem lengths. For deeper reconstruction, alternate or follow with the Extentioniste Mask to reinforce and protect over-processed areas.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShampoo first to remove surface impurities and open cuticles slightly.\u003c\/li\u003e\n  \u003cli\u003eApply conditioner from mid-length to tips, leave 2–3 minutes, then rinse.\u003c\/li\u003e\n  \u003cli\u003eUse the Therapist Hair Mask weekly for intensive reinforcement.\u003c\/li\u003e\n  \u003cli\u003eRegular use supports smoother, easier-to-manage lengths over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat visible benefits can I expect and how quickly?\u003c\/h3\u003e\n\u003cp\u003eUsers typically notice improved detangling and a softer texture immediately after rinsing. Over continued use, hair appearance benefits include increased shine, fewer visible split ends, and improved manageability as cuticles become smoother and lengths feel stronger.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImmediate: easier combing and reduced knots after conditioning.\u003c\/li\u003e\n  \u003cli\u003eShort term: enhanced shine and smoother surface from ceramides.\u003c\/li\u003e\n  \u003cli\u003eOngoing: strengthened lengths and lower breakage with repeated use.\u003c\/li\u003e\n  \u003cli\u003eBest results when combined with the full Extentioniste line.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: KÉRASTASE Fondant Extentioniste is designed for people with long, fragile or chemically-treated hair looking to reinforce lengths, reduce breakage while detangling, and improve surface shine. It suits anyone seeking a lightweight yet nourishing conditioner to maintain longer hair and minimize split ends when used as part of a targeted care routine.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eAqua, Water, Cetearyl Alcohol, Propylene Glycol, Maleic Acid, Behentrimonium Methosulfate, Ethanolamine, Stearamidopropyl Dimethylamine, Glycerin, Phenoxyethanol, Hydroxyethylcellulose, Quaternium-91, Polyquaternium-37, Benzoic Acid, Paraffinum Liquidum, Mineral Oil, Cetrimonium Chloride, Cetrimonium Methosulfate, Amyl Cinnamal, Hexyl Cinnamal, Benzyl Alcohol, Ppg-1 Trideceth-6, Linalool, Hydroxycitronellal, Acrylates Copolymer, Citronellol, Limonene, Creatine, 2-Oleamido-1, 3-Octadecanediol, Benzyl Cinnamate, Sorbitan Oleate, Ci 19140, Yellow 5, Ci 42090, Blue 1, Parfum, Fragrance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do I leave KÉRASTASE Fondant Extentioniste in?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Apply to wet hair for 2–3 minutes, then rinse thoroughly for best results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this on chemically-treated hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—it's formulated to strengthen over-processed and fragile lengths when used regularly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KÉRASTASE","offers":[{"title":"Default Title","offer_id":53429147402587,"sku":"B07D3T1LML","price":62.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/9860\/9243\/files\/kerastase-fondant-extentioniste-front-packaging.jpg?v=1782233362","url":"https:\/\/remediesbeauty.co.uk\/products\/kerastase-fondant-extentioniste-strengthening-conditioner-200-ml-repairs-lengths-seals-split-ends","provider":"REMEDIESBEAUTY","version":"1.0","type":"link"}