A multi-action shampoo for stronger, defined, and more hydrated coils, curls, and waves in one use. Curls are structurally unique–more bonds, more bends, more prone to breakage. This shampoo for coily, curly, and wavy hair delivers multi-action care to instantly strengthen, define, hydrate and target your hair’s unique combination of needs, no matter your pattern. Powered by patented 3D Bond Shaper™ Technology and Hydra-Define Technology™, Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO works on a molecular level to instantly strengthen and infinitely define coils and curls, cut frizz in half, and help protect length over time.  The silky, creme-gel formula provides essential slip to prevent tangles. It removes buildup without stripping for light, clean hair between wash days for 7-day hydrated curls*. For all coils, curls, and waves, and all porosity levels. Trichologist Approved. Stylist & Dermatologist Tested. Vegan. Color-safe and suitable for chemically treated hair. Tested on coils and curls. Olaplex Signature Scent, Reimagined Revitalize your senses with elevated notes of crisp and invigorating Sugared Mint, complemented by a bright burst of Grapefruit Zest Ginger, and a sophisticated, grounding base of Crushed Sage. *When Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO & *Nº.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER are used as a system Benefits Instantly Strong Infinitely Defined 7-Day Hydration Reduces breakage and protects length Cuts frizz in half, even in high humidity Instantly easier detangling and static control Dermatologist tested, vegan, color-safe, and suitable for chemically treated hair Use Apply to wet hair. Lather. Rinse. Follow with N°.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER or OLAPLEX mask of choice. Avoid contact with eyes. Ingredients Patented 3D Bond Shaper™ Technology   Builds disulfide bonds from 6 points in multiple directions to repair, strengthen, and define coils and curls. Hydra-Define Technology™   Positively charged hyaluronic acid complex neutralizes points of damage, sealing the cuticle to lock in smoothing hydration and block frizz-forming humidity. Natural Oil Blend   Nourishing Avocado and Sunflower oils impart moisture, softness, and definition. Olaplex Signature Scent, Reimagined Revitalize your senses with elevated notes of crisp and invigorating Sugared Mint, complemented by a bright burst of Grapefruit Zest Ginger, and a sophisticated, grounding base of Crushed Sage. No protein overload. No silicone buildup. Free of Protein, Silicones, Sulfates, SLS/SLES,  Phthalates, Phosphates, MIC/MIT, and Parabens. Aqua (Water, Eau), Sodium Cocoyl Isethionate, Cocamidopropyl Betaine, Sodium C14-16 Olefin Sulfonate, Cocamidopropylamine Oxide, Decyl Glucoside, Acrylates Copolymer, sh-Oligopeptide-281 SP, Carthamus Tinctorius (Safflower) Oleosomes, Panthenol, Polyquaternium-11, Polyquaternium-7, Salvia Hispanica Seed Extract, Ilex Paraguariensis Leaf Extract, Crambe Abyssinica Seed Oil, Linum Usitatissimum (Linseed) Seed Extract, Hydroxypropyltrimonium Hyaluronate, Helianthus Annuus (Sunflower) Seed Oil, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Seed Wax, Menthyl Lactate, Jojoba Esters, Tocopherol, Pentylene Glycol, Acacia Senegal Gum, Menthol, Glycerin, Glycol Distearate, Polyester-37, Propanediol, Caprylyl Glycol, Ethyl Linoleate, Ethyl Oleate, Caprylic Acid, Xylitol, Lactic Acid, Hydroxypropyl Bis-Hydroxyethyldimonium Chloride, Guar Hydroxypropyltrimonium Chloride, Acrylamidopropyltrimonium Chloride/Acrylamide Copolymer, Sorbitan Oleate Decylglucoside Crosspolymer, Hydroxypropylcellulose, Ethylhexylglycerin, Polyglycerin-3, Propylene Glycol, Phenethyl Alcohol, Pentaerythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate, Gluconolactone, Sodium Metabisulfite, Trisodium Ethylenediamine Disuccinate, Parfum (Fragrance), Phenoxyethanol, Chlorphenesin, Sodium Chloride, Citric Acid, Sodium Benzoate, Benzyl Alcohol, Potassium Sorbate, Sodium Hydroxide, Citral, Citrus Aurantium Peel Oil, Hexyl Cinnamal, Limonene. Ingredients are subject to change. For the most current ingredient list, please consult the product packaging of the item you received.