The active ingredients are omega-3 acid ethyl ester 90. 1 soft capsule contains 1000 mg omega-3 acid ethyl ester 90 with a content of 460 mg icosapent-ethyl and 380 mg doconexent-ethyl (these substances are also known as polyunsaturated omega-3 fatty acids .) including 4 mg d-α-tocopherol (mixed with a vegetable oil such as soybean oil) as an antioxidant.