Natura Bisse Oxygen Finishing Mask (All Skin Types) has the following features: This refreshing and highly purifying gel mask envelops your skin with an ultra-fresh sensation that instantly rehydrates your skin. Its capacity to purify and decongest keeps your skin free of impurities, revitalized and luminous, with a subtle matte finish that is silky to the touch. Contains stabilized Hydrogen Peroxide which transforms into pure oxygen and water upon penetrating your skin: hydrating, brightening, purifying.