维生素A产品是Vitamin A is an intermediate in retinol metabolism in animals. It is metabolized to retinoic acid, a ligand for both the retinoic acid receptor (RAR) and the retinoid X receptor (RXR). roles in development, reproduction, immunity, organogenesis, and cancer. Vitamin A is a potent antioxidant that displays lipoperoxy radical scavenging activity and fluorescent properties.