Nutra-A Plus is a high potency vitamin A made from vegetarian sources. The 7,500 mcg (25,000 IU) of vitamin A includes the 3,000 mcg (10,000 IU) of Pre-Formed vitamin A and 9,000 mcg (15,000 IU) of beta-carotene vitamin A from mixed carotenoids derived from algae and spirulina. Nutra-A Plus is a highly potent source of vitamin A that has a wide margin of safety because the majority of the vitamin A is beta-carotene, which the body must convert to the active form of vitamin A as needed. 100 VCaps per bottle. (Also available in 250 size)