{"product_id":"olaplex-nº-4-bond-maintenance-shampoo-250-ml-strengthens-hair-reduces-breakage-hydrates","title":"Olaplex Nº.4 Bond Maintenance Shampoo 250 mL — Strengthens Hair, Reduces Breakage \u0026 Hydrates","description":"\u003cp\u003e\u003cstrong\u003eOlaplex Nº.4 Bond Maintenance Shampoo is a concentrated, bond-building cleanser designed to reduce breakage, restore moisture, and improve manageability in a single wash.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFormulated with Olaplex’s patented bond-repair chemistry and a gentle coconut-derived surfactant system, Nº.4 cleanses while helping restore internal hair strength. It is created to work on all textures — from fine to coily — and pairs well with the rest of the Olaplex regimen to deliver smoother, shinier, and easier-to-style hair. The formula targets everyday damage from heat, styling, and environmental stress without stripping natural moisture.\u003c\/p\u003e\n\n\u003ch3\u003eHow does Nº.4 improve hair strength and reduce breakage?\u003c\/h3\u003e\n\u003cp\u003eThe shampoo contains Olaplex’s bond-building ingredient that helps reconnect weakened disulfide bonds inside the hair shaft, supporting resistance to snapping and split ends. By reinforcing internal structure and improving elasticity, hair becomes less prone to mechanical damage during brushing and styling.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBond-building chemistry to support internal hair structure\u003c\/li\u003e\n\u003cli\u003eHydrating agents like glycerin and panthenol to improve pliability\u003c\/li\u003e\n\u003cli\u003eProven reduction in breakage when used in the Olaplex system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this shampoo dry out my hair or strip color?\u003c\/h3\u003e\n\u003cp\u003eNº.4 is formulated to cleanse effectively without removing color or natural hydration; it is labeled color-safe and uses mild surfactants rather than harsh sulfates. The blend of moisturizing oils and conditioning polymers helps maintain shine and softness after wash, making it suitable for color-treated hair.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eColor-safe surfactant system for gentle cleansing\u003c\/li\u003e\n\u003cli\u003eMoisturizers and oils to protect hydration and shine\u003c\/li\u003e\n\u003cli\u003eBalanced pH and conditioning agents to reduce friction and frizz\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use Olaplex Nº.4 for best results?\u003c\/h3\u003e\n\u003cp\u003eApply to wet hair, massage into a lather from roots to ends, then rinse thoroughly; repeat if needed. For optimal repair and long-term strength benefits, use Nº.4 as part of the Olaplex trio with Nº.3 (treatment) and Nº.5 (conditioner), following product directions for timing and frequency.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet hair, lather, rinse; repeat for deeper cleanse\u003c\/li\u003e\n\u003cli\u003ePair with Nº.3 and Nº.5 for maximum broken-bond reduction\u003c\/li\u003e\n\u003cli\u003eUse consistently—regular washes maintain improved texture and manageability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat hair types benefit most from this shampoo?\u003c\/h3\u003e\n\u003cp\u003eAlthough created to support medium to coarse hair, the gentle formula suits straight, wavy, curly, and coily textures that need strengthening and moisture. It helps anyone experiencing increased breakage, tangling, or dullness from chemical or thermal services, as well as people who want smoother styling results.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll textures: straight, wavy, curly, coily\u003c\/li\u003e\n\u003cli\u003eRecommended for hair with mechanical, chemical, or heat damage\u003c\/li\u003e\n\u003cli\u003eGood choice for color-treated or textured hair needing hydration and resilience\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Olaplex Nº.4 Bond Maintenance Shampoo is ideal for shoppers seeking a salon-grade, science-driven cleanser that strengthens hair while preserving moisture and color. Choose Nº.4 if you want a daily or regular-use shampoo that supports repaired bonds, reduces breakage over time, and leaves hair easier to detangle and style. Pair it with complementary Olaplex products for measurable improvements in smoothness and manageability.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eWater (Aqua\/Eau), Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Potassium Cocoyl Glycinate, Disodium Cocoyl Glutamate, Sodium Lauroyl Sarcosinate, Potassium Cocoate, Decyl Glucoside, Glycereth-26, Bis-aminopropyl Diglycol Dimaleate, Cocamidopropylamine Oxide, Disodium Laureth Sulfosuccinate, Glycol Distearate, Sodium Cocoyl Glutamate, Methyl Gluceth-20, Acrylates Copolymer, Peg-120 Methyl Glucose Dioleate, Amodimethicone, Citric Acid, Sodium Lauryl Sulfoacetate, Polyquaternium-10, Ethylhexylglycerin, Divinyldimethicone\/Dimethicone Copolymer, Polyquaternium-11, Trisodium Ethylenediamine Disuccinate, Guar Hydroxypropyltrimonium Chloride, C11-15 Pareth-7, Laureth-9, Glycerin, Trideceth-12, C12-13 Pareth-23, C12-13 Pareth-3, Hydrolyzed Vegetable Protein, Pg-propyl Silanetriol, Panthenol, Acetic Acid, Tetrasodium Edta, Pentasodium Triphosphate, Sodium Hydroxide, Disodium Edta, Helianthus Annus (Sunflower) Seed Oil, Tocopherol, Prunus Armeniaca (Apricot) Kernel Oil, Pseudozyma Epicola\/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Pseudozyma Epicola\/Argania Spinosa Kernel Oil Ferment Filtrate, Quaternium-95, Propanediol, Helianthus Annus (Sunflower) Seed Extract, Peg-8, Euterpe Oleracea Fruit Extract, Punica Granatum Extract, Rosemarinus Officinalis (Rosemary) Leaf Extract, Musa Sapientum (Banana) Fruit Extract, Origanum Vulgare Lear Extract, Morinda Citrifolia Fruit Extract, Articum Lappa Root Extract, Peg-8\/Smdi Copolymer, Sodium Hyaluronate, Palmitoyl Myristyl Serinate, Sodium Polyacrylate, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Biotin, Benzoic Acid, Phenoxyethanol, Chlorphenesin, Potassium Sorbate, Sodium Benzoate, Fragrance(Parfum), Citral, Hexyl Cinnamal, Limonene\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 Olaplex Nº.4 safe for color-treated hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Nº.4 is color-safe and formulated with mild surfactants to cleanse without stripping color.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I use Nº.4 for best results?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use regularly as your shampoo; pair with Nº.3 and Nº.5 for optimal repair and breakage reduction.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Olaplex","offers":[{"title":"Default Title","offer_id":51488080036073,"sku":"B07D37PQGL","price":109.48,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/7674\/2633\/files\/olaplex-number-4-front-bottle.jpg?v=1783301825","url":"https:\/\/cervaaustralia.com\/products\/olaplex-n%c2%ba-4-bond-maintenance-shampoo-250-ml-strengthens-hair-reduces-breakage-hydrates","provider":"Cerva Australia | Professional Beauty Supplies, Skincare \u0026 Cosmetics","version":"1.0","type":"link"}