The chemical name of vitamin A is retinol Product function:Maintain the visual circulation of retina; With steroid hormone properties, it can promote animal reproductive function and regulate body metabolism; Participate in bone cell metabolism and promote the growth and development of bone and teeth; Maintain and protect the formation of epithelial tissue and mucosa to prevent the invasion of pathogenic microorganisms; It can remove free radicals and peroxides and protect the body from oxidative damage; Participate in animal immunity and enhance disease resistance.