Olaplex Hair Perfector N°3 Repairing Treatment is designed to boost the strength of the hair by relinking the broken disulfide bonds in damaged hair.  It can be used on all hair types and manufacturers' color formulas.  It can be used once a week to strengthen hair or be used as a pre-treatment to chemical coloring services.  
 
Directions for use:
Apply a generous amount to wet towel-dried hair and comb through.
Leave on for a minimum of 10 minutes.  Note:  The longer it is on, the more effective it is (especially for compromised hair).  It can be left on for 30 - 90 minutes.  
Then rinse, shampoo and condition. This is NOT a conditioning treatment OR a leave-in treatment. It is meant to be shampooed out of the hair and followed up with your regular shampoo/condition regimen.
Style hair as you normally would. 
 
Ingredients
Water, Bis-Aminopropyl Digycol Dimaleate, Propylene Glycol, Cetearyl Alcohol, Hydrolyzed Soy Protein, Ascorbic Acid (Vitamin C), Tocopheryl Acetate (Vitamin E), Retinol Palmitate (Vitamin A), Aloe Barbadensis Leaf Juice, Phytantriol, Panthenol, Simmondsia Chinensis (Jojoba) Seed Oil, Hydrolyzed Wheat Protein, Wheat Amino Acids, Behentrimonium Methosulfate, Cetyl Alcohol, Glycerin, Stearamidopropyl Dimethylamine, Hydroxyethyl Ethylcellulose, Quaternium-91, Cetrimonium Methosulfate, Cetrimonium Chloride, Fragrance (Parfum), Polyquaternium-37, Tetrasodium EDTA, Magnesium Nitrate, Butylphenyl Methylpropional, Methylchloroisothiazolinone, Magnesium Chloride, Methylisothiazolinone, Etidronic Acid, Potassium Sorbate, Phenoxyethanol, Citric Acid, Disodium EDTA, Sodium Benzoate, Prunus Amygdalus Dulcis (Sweet Almond) Oil.