Product details Using a pH balanced formula infused with Citric Acid, Redken's Extreme Strength Builder Plus strengthens hair from the inside out for increased control and manageability.This strengthening hair mask provides deep conditioning and strengthens hair from the inside out for increased control and manageability. It restores internal strength and shine leaving hair with increased control and manageability. Suitable for Protein powered strength repair for damaged hair. How to use After shampooing apply to towel-dried hair. Leave on for 5 minutes (for deeper conditioning leave on for as long as desired). Rinse thoroughly. Hazards and Cautions In case of contact with eyes, rinse them immediately. Important info Ingredients AQUA / WATER / EAU, BEHENTRIMONIUM CHLORIDE, STEARYL ALCOHOL, CETYL ALCOHOL, GLYCERIN, ELAEIS GUINEENSIS OIL / PALM OIL, ISOPROPYL ALCOHOL, PARFUM / FRAGRANCE, STEARAMIDOPROPYL DIMETHYLAMINE, OCTYLDODECANOL, METHYLPARABEN, CITRIC ACID, HYDROXYETHYLCELLULOSE, HYDROLYZED VEGETABLE PROTEIN PG-PROPYL SILANETRIOL, ARGININE, HYDROLYZED SOY PROTEIN, 2-OLEAMIDO-1,3-OCTADECANEDIOL, CHLORHEXIDINE DIHYDROCHLORIDE, BEHENTRIMONIUM METHOSULFATE, QUATERNIUM-33, PHENOXYETHANOL, BENZYL BENZOATE, LIMONENE, BENZYL ALCOHOL, LINALOOL, POTASSIUM SORBATE, CI 42090 / BLUE 1, CI 17200 / RED 33