The FRAMESI STRAIGHTENING SYSTEM STRONG is formaldehyde-free and has the following ingredients:
Water
Cetearyl Alcohol
Ammonium Thioglycolate
Ceteareth-20
Paraffinum Liquidum (Mineral Oil)
Glycerin
Ammonium Hydroxide
Diglycerin
PEG-40 Castor Oil
Sericin
Squalene
Hydrolyzed Keratin
Fragrance
Polyquaternium-7
Behentrimonium Chloride
Cetrimonium Chloride
Guar Hydroxypropyltrimonium Chloride
Sodium Dehydroacetate
Simethicone
Caprylyl Glycol
Phenoxyethanol
Potassium Sorbate
Hexyl Cinnamal
Benzyl Salicylate
Linalool
Methylparaben