Groundbreaking bioflavonoid and advanced vitamin C supplement.
The USANA Difference. This unique formula gives your body advanced antioxidant protection and supports a balanced immune system. Using USANA’s innovative Nutritional Hybrid Technology, Proflavanol C100 combines grape-seed extract and vitamin C to give you the best of both worlds in a single, powerful tablet.
- Prevention and treatment of vitamin C deficiency.
- Supports healthy cardiovascular function.