Hydroxypropyl -B-cyclodextrin is mainly used in food manufacturing to eliminate odors, improve the stability of flavors and pigments, and enhance emulsification and moisture-proof ability. Improve the taste of food, is a good stabilizer for pharmaceutical, food, cosmetic manufacturing and flavor Chemicalbook agent. In medicine, it can improve the solubility and bioavailability of drugs, increase the efficacy of drugs or reduce the dosage, adjust or control the release speed of drugs, reduce the side effects of drugs, enhance the stability of drugs, mainly used in oral liquid, the highest safety.