The research progress on hyaluronic acid (HA) in recent years was summarized. Consulting 30 literatures both domestic and abroad

the preparation methods

derivative structures and application of HA were reviewed. Hyaluronic acid is considered as a new pharmaceutical excipient

with stable physical and chemical properties as well as good compatibility and moisturizing effect

also it can be simply biodegraded. At present

as for the preparation

research and application of HA in China

there is still a large gap compared with the advanced research abroad

however

HA was the vast market potential which provides huge space for development and application.