The present invention relates to a cosmetic, dietary supplement, or pharmaceutical composition for oral ingestion or topical application to the skin comprising effective amounts of a tocopherol quinone, tocopherol quinol, plastoquinol, menaquinol, or phylloquinol compound, or any combination thereof as a method for preventing free radical oxidation or preventing or treating environmental skin damage including photoaging, trauma, discoloration, dryness, thickness, elasticity, or wrinkles.