The present application describes an antioxidant complex having a synergistic effect between its ingredients. Said mixture comprises: a) vitamin E and/or derivatives thereof; b) green tea extract and/or derivatives thereof; and c) cacao extract. Examples of cosmetic and pharmaceutical compositions comprising said antioxidant complex and a physiologically acceptable carrier are also described. The antioxidant complex of the present invention, as well as the aforementioned compositions, aid in preventing and protecting against cell and skin damages resulting from the action of free radicals, and also provide DNA, protein and cell membrane protection.