A professionally crafted take-home treatment from the patented OLAPLEX System that actively repairs and rebuilds broken bonds in the hair. Restore integrity and maintain strong, healthy hair with OLAPLEX No.3 Hair Perfector., , How To Use Apply a generous amount of product from roots to ends on towel-dried, unwashed hair.Distribute the product using a comb and leave on for 10 min. Use once a week or two to three times a week for damaged hair. Rinse from hair, shampoo and condition. , , Ingredients Water (Aqua/Eau), Bis-Aminopropyl Diglycol Dimaleate, Propylene Glycol, Cetearyl Alcohol, Behentrimonium Methosulfate, Cetyl Alcohol, Phenoxyethanol, Glycerin, Hydroxyethyl Ethylcellulose, Stearamidopropyl Dimethylamine , Quaternium-91, Sodium Benzoate, Cetrimonium Methosulfate, Cetrimonium Chloride, Fragrance (Parfum), Tetrasodium EDTA, Polyquaternium-37, Benzyl Benzoate, Etidronic Acid, Ascorbic Acid, Phytantriol, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice, Panthenol, Simmondsia Chinensis (Jojoba) Seed Oil, Citric Acid, Potassium Sorbate