The benefits of vitamin C are energized in this formula, which is designed to make more vitamin C available for immune support and free radical scavenging. After vitamin C carries out its antioxidant function of neutralizing free radicals, it is oxidized and spent. The unique blend of compounds in Systemic C™, including alpha-lipoic acid, N-acetyl cysteine, quercetin, and grape seed extract, help to reactivate and recycle vitamin C in the body. This provides the body with increased antioxidant activity, an upgraded, robust C for healthy aging, immune health and heart health. Reactivating vitamin C allows this important vitamin to continue its vital functions.