Source of Life® Ultra Whole Life Energy Enhancer from Nature's Plus® derives its power from more than 50 whole food concentrates and extracts, including 17 fruits, 12 vegetables, 11 species of marine algae and 10 herbs. Source of Life® Ultra Whole Life Energy Enhancer builds on the already proven Source of Life® multi-vitamin formula to offer an even higher level of support for active adults pursuing optimal well-being. Source of Life® Ultra Whole Life Energy Enhancern incorporates Thione Complex, a specialized complex of glutathione, N-acetyl cysteine, selenium and grape seed extract, for maximum antioxidant support.