Disclosed is a composition of a synergistically effective ratio of an hydroxamic acid, salt and/or a complex thereof and an antioxidant. The composition is effective to reduce or prevent lipid peroxidation upon exposure of a lipid to UV light. Personal care and other formulations are included within the scope of the invention, as are the related methods of increasing the antioxidant potential of an antioxidant, of reducing a rate of peroxidation of constituent lipids in a personal care formulation over a time period and of reducing peroxidation of lipids within mammalian skin cells.
