Recent studies have shown that gamma-tocopherol is a superior antioxidant to alpha-tocopherol and can contribute to a healthy cardiovascular system. With Source Naturals GAMMA E 400, you'll get a 3:1 ratio of gamma- to alpha-tocopherol (127 mg equals 190 IU) and tocotrienols from palm fruit, which offer high levels of all four tocotrienols: alpha, beta, gamma, and delta. The base of sesame seed oil, known for its abundance of gamma-tocopherol, is also included.