The invention relates to structured water and its antioxidant activity. In addition, the present invention relates to antioxidants incorporated within the cluster structure of either electropositive (S water) or electronegative (I water). The structured water, having the antioxidant within its cluster structure, has a stabilizing effect on the antioxidant. In addition, the antioxidant activity inherent to structured water is enhanced by the presence of the antioxidant within its cluster structure. The present invention also includes methods of removing or reducing free radicals on the skin and thereby preventing the signs of skin aging and the risks of cancer associated with the presence of free radicals in the skin.