This product contains more than 98% Proanthocyanidin, Proanthocyanidin can effectively improve capillary permeability, swelling and stasis, improve microcirculation, is a natural anti-aging nutritional supplement, can effectively eliminate free radicals in the body, the antioxidant capacity is much higher than that of vitamin E. Can make collagen can better play a role in moisturizing the skin, delay skin aging, beauty. The Proanthocyanidin also prevents cancer, keeps blood vessels stable and protects vision.