Citrus Bioflavonoids from NOW Foods are gelatin capsules containing a complex of citrus bioflavonoids for immune system support and to maintain vascular system function. This product vitamin C (as ascorbic acid) per serving and rutin (Sophora japonica) flower bud powder for a synergistic effect.Bioflavonoids, also called flavonoids or “vitamin P,” are phytonutrients that help promote overall health, support healthy looking skin and more. Often called “super-antioxidants,” they can be ingested from natural fruits such as lemons, limes, oranges, grapefruits, and tangerine, as well as vegetables high in vitamin C, such as broccoli and kale. However, it may be beneficial to your health to take a supplement of dietary bio-flavonoids to fill any nutritional gaps in your diet.Bioflavonoids can also support your skin against free radical damage triggered by the effects of stress,environmental pollution, or the natural aging process.