Sfera Quercetin Complex is blended to act as a source of antioxidants, assist with capillary/blood vessel protection and assist in minor pain, swelling and inflammation relief. Sfera Quercetin Complex is composed of Quercetin, Citrus bioflavonoids, Bromelain and stinging nettle extract. Sophora japonica, also known as the Japanese pagoda tree, has buds and flowers which is traditionally used as a medicinal herb. Sophora japonica buds contains a yellow pigment flavonoid known as quercetin. Quercetin is reported to be a source of antioxidants and to act as a capillary/blood vessel protectant. Citrus aurantium, also known as bitter orange, is a type of...