Acid Bio-Compensator 10 vials Professional serum in vials: moisturizer, emollient, filmogenic, protective (10 vials of 5 ml). Slightly acid, with pH and common bur, recommended for greasy impure or asphyxic complexion. Contains: Anhfeldtia concinna (red alga from the Pacific Ocean) extract, reconstructed N.M.F. (Natural Moisturizing Factor), collagen, common bur extract. Usage: One applies it in treatments, both in cosmetic centers, and at home, as a basis for the mask. One applies it in a pure form, without combining with other products. It's an excellent basis for make-up.