... vitamin c powder, vitamin c ampoules, vitamin c ascorbic acid, bulk ascorbic acid manufacturers and suppliers in China or a such factory, ... . Vitamin C Specification: Vitamin C, also known as ascorbic acid, is an acidic polyol containing six carbon atoms. White ... and ultraviolet light. Application: Vitamin C, also known as ascorbic acid, is a widely used health care products, pharmaceuticals, cosmetics ...