From Manufacturer's Label: Hawaiian Astaxanthin is an antioxidant which provides our cells with support and protection from oxidative damage, which occurs naturally when our body is exposed to internal or external stress.** Supports joint, skin and eye health naturally.** Found in several types of marine plants and animals, Astaxanthin is a natural carotenoid. It is more potent than other antioxidants such as Co Q-10, Vitamin C, Vitamin E and Beta Carotene. Each BioAstin capsule delivers 4mg of natural Hawaiian Astaxanthin. Gluten Free. Non-GMO. Free of soy, yeast, corn, wheat, gluten, lactose, and BSE. Contains 60 capsules. Manufactured by: Nutrex Hawaii