{"product_id":"kerastase-bain-extentioniste-strengthening-shampoo-16-9-fl-oz-increases-elasticity-prepares-hair-for-deep-conditioning","title":"KÉRASTASE Bain Extentioniste Strengthening Shampoo, 16.9 fl oz — Increases Elasticity \u0026 Prepares Hair for Deep Conditioning","description":"\u003cp\u003e\u003cstrong\u003eKÉRASTASE Resistance Bain Extentioniste is a length-strengthening shampoo that reinforces hair fiber from root to tip, increasing elasticity and preparing strands for deeper treatments.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis formula targets weakened or damaged lengths with a blend of amino acids and lipids designed to rebuild the hair’s inner structure while smoothing the surface. It cleanses the scalp and hair gently, leaves a light fragrance, and creates a cleaner foundation so conditioners and masks can penetrate more effectively. Ideal when you want to grow hair longer without sacrificing strength, this shampoo is suitable for all hair types and integrates into any multi-step strengthening routine.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this shampoo help hair that breaks or splits?\u003c\/h3\u003e\n\u003cp\u003eBain Extentioniste works on two levels: it reinforces the internal matrix of the fiber and restores the outer surface for less breakage during combing and styling. Strengthening ingredients help hair resist mechanical stress so fewer ends split and break off.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains Creatine R to reinforce internal hair structure.\u003c\/li\u003e\n  \u003cli\u003eCeramides smooth and recover the cuticle surface.\u003c\/li\u003e\n  \u003cli\u003eTaurine supports a healthier scalp milieu that promotes resilient strands.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect in my routine after using it?\u003c\/h3\u003e\n\u003cp\u003eUse as a first step before applying a deep conditioner or mask; the shampoo removes residue and primes fibers for better absorption. You’ll notice increased manageability and shine that make subsequent treatments more effective.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrepares lengths for concentrated masks or leave-in treatments.\u003c\/li\u003e\n  \u003cli\u003eEnhances product penetration by gently purifying the scalp and hair.\u003c\/li\u003e\n  \u003cli\u003eLeaves hair easier to detangle and style after conditioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich active ingredients are included and what do they do?\u003c\/h3\u003e\n\u003cp\u003eThe formula combines targeted amino acids and lipid-replenishing agents to treat both the inside and outside of the hair fiber. Each component plays a role in strengthening, smoothing, or protecting strands from daily wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCreatine R: a small amino-acid-derived molecule that reinforces internal cohesion of the fiber.\u003c\/li\u003e\n  \u003cli\u003eCeramides: restore and smooth the cuticle to reduce friction and frizz.\u003c\/li\u003e\n  \u003cli\u003eTaurine: an amino acid that helps maintain a balanced scalp environment and protects fibers from stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use Bain Extentioniste for best results?\u003c\/h3\u003e\n\u003cp\u003eApply to wet hair, lather, and rinse thoroughly; repeat if your hair is very oily or product-laden. Follow with a KÉRASTASE conditioner or mask targeted to lengths and ends for optimal strengthening and softness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse every wash or alternate with a gentler cleanser, depending on scalp needs.\u003c\/li\u003e\n  \u003cli\u003ePair with Resistance conditioners or a mask to complete the strengthening regimen.\u003c\/li\u003e\n  \u003cli\u003eFor longer-term growth goals, include regular trims and minimize heat styling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Bain Extentioniste is formulated for those with weakened, damaged, or overworked lengths who want to build strength while growing hair longer. It’s appropriate for all hair types—fine to thick, straight to curly—and for anyone using chemical or heat processes who needs a shampoo that both cleanses gently and delivers rebuilding benefits.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eAqua \/ Water \\\\u25cf Sodium Laureth Sulfate \\\\u25cf Coco-Betaine \\\\u25cf Taurine \\\\u25cf Cocamide Mipa \\\\u25cf Sodium Chloride \\\\u25cf Amodimethicone \\\\u25cf Laureth-5 Carboxylic Acid \\\\u25cf Ppg-5-Ceteth-20 \\\\u25cf Sodium Benzoate \\\\u25cf Sodium Hydroxide \\\\u25cf Citric Acid \\\\u25cf Polyquaternium-10 \\\\u25cf Peg-55 Propylene Glycol Oleate \\\\u25cf Propylene Glycol \\\\u25cf Peg-60 Hydrogenated Castor Oil \\\\u25cf Salicylic Acid \\\\u25cf Amyl Cinnamal \\\\u25cf Hexyl Cinnamal \\\\u25cf Benzyl Alcohol \\\\u25cf Linalool \\\\u25cf Hydroxycitronellal \\\\u25cf Citronellol \\\\u25cf Limonene \\\\u25cf Creatine \\\\u25cf 2-Oleamido-1,3-Octadecanediol \\\\u25cf Benzyl Cinnamate \\\\u25cf Sodium Acetate \\\\u25cf Isopropyl Alcohol \\\\u25cf 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: Is Bain Extentioniste safe for colored hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s formulated to be gentle while strengthening lengths and is compatible with color-treated hair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I use this shampoo?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use it at each wash or alternate with a milder cleanser depending on oil levels and styling-product build-up.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KÉRASTASE","offers":[{"title":"Default Title","offer_id":57794270789964,"sku":"B07JHD1H82","price":82.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/5912\/6860\/files\/kerastase-resistance-bain-extentioniste-front-packaging.jpg?v=1781477814","url":"https:\/\/belvera.co.uk\/products\/kerastase-bain-extentioniste-strengthening-shampoo-16-9-fl-oz-increases-elasticity-prepares-hair-for-deep-conditioning","provider":"Belvera | British Beauty, Skin Care \u0026 Personal Wellness","version":"1.0","type":"link"}