Hyaluronic acid is a natural substance, which widely exists in human and animal bodies. With its unique physical and chemical properties, hyaluronic acid has a variety of important physiological functions in our body. Like a molecular sponge, Hyaluronic acid is able to retain water up to 500-1000 times of its own weight. It is one of the most hydrophilic molecules in nature which maintains skin elastic and lubricates the joints. HA applied in Food graprotect against premature aging; Improve joint lubrication function; Reduce joint pain; Improve the gastrointestinal function; Wound healing; Improve the function of cardiovascular; Improve immunity; Anti-tumor;