Advanced formula also provides cellular support to protect against environmental stress that can lead to early signs of aging.*. Formulated to support circulatory and cardiovascular health and also may help to maintain healthy, normal cholesterol levels already in the normal range.*. Powerful vitamin c complex includes bioflavonoids to help protect cells and support an already healthy immune system.*. Designed with USANA's Hybrid Technology, this powerful antioxidant supplement combines the benefits of both grape-seed extract and vitamin C offering superior protection from oxidative stress.*. USANA Proflavanol C200 Capsules contain a combination of high-quality grape seed extract with the free-radical quenching power of USANA’s Poly C blend to raise levels of vitamin C for longer periods of time.