Bluebonnet Rutin is a 100% natural bioflavonoid that is derived from sophora japonica, also known as the Japanese pagoda tree. Rutin helps strengthen and protect capillaries throughout the body, making it an effective natural circulation aid. Free of milk, egg, fish, crustacean shellfish, tree nuts, wheat, peanuts, soybeans, corn,  gluten, barley, rice, sodium, sugar and sesame.