Key ingredients include an 8% Glycolic Acid solution that reduces the corneocyte cohesion of the keratin layer of the skin, which enables homogeneous exfoliation. A 4% Phytic acid solution is a lightening and antioxidant agent. When associated with Glycolic Acid, Phytic Acid regulates the production of melanin which causes superficial brown marks triggered by the sun. Vitamin C complex improves the skin’s resistance to attacks from free radicals and in this formulation is stable, and will not oxidize. Paraben-free. Fragrance-free.