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 orange plant native to Southeast Asia, which has been spread all over the world. Citrus aurantium fruit is a source of Bioflavonoids, which act as a source of anti-oxidants. 

Ananas comosus, commonly known as the pineapple plant, is a well-known tropical plant with an edible fruit. The pineapple fruit contains an enzyme known as Bromelain. Bromelain may assist with relief of minor pain, swelling and inflammation. 

Urtica dioica, commonly known as stinging nettle, is a herby plant with a wide distribution. Stinging nettle has been recorded for use as traditional medicine as far back as the 10th century. In Sfera products a Urtica dioica root extract is used with the aim to assist with general well-being.