Quercetin, a bioflavonoid with antihistamine activity, known for its immune-supportive properties. Bioflavonoids, found in fruits and vegetables like onions, apples, broccoli, and berries, which contribute to the antioxidant activity of the supplement. Antioxidant activity from quercetin, rutin, and citrus bioflavonoids, helping to reduce free radical damage to cells. Vitamin C, which supports immune system health and also exhibits antihistamine activity. Support for blood vessel and capillary health, contributing to overall cardiovascular well-being. With 60 tablets per pack, Quercetin Complex offers a convenient and effective way to support immune health and overall vitality.