• Zero Formaldehyde, with Collagen • Perfectly formulated to provide salons a legitimate alternative to traditional keratin treatments that contain formaldehyde • Maximum curl and volume reduction without a permanent structural change to the hair, and without the use of aldehydes, thioglycolate or sodium hydroxide. KEY INGREDIENTS: • Keratin: Revitalizes the hair's natural protective layer, adds strength, restores elasticity and reduces breakage. • Macadamia and Argan Oils