Oxybenzone: Although benzophenones are primarily UV-B absorbers, oxybenzone absorbs well through UV-A II. Oxybenzone can be considered a broad-spectrum absorber. It significantly augments UV-B protection when used in a given formula. Hydroquinone is a topical depigmentating agent used in hyperpigmentation conditions by suppressing melanocyte metabolic processes. It also increases melanin excretion from melanocytes and prevents its production. Aminobenzoic acid is used topically as a sunscreen. It is used to prevent sunburn, but unlikely to prevent drug-related or other photosensitivity reactions associated with UVA light.