Hyaluronic acid,is an acidic mucopolysaccharide. It is an important basic substance for skin suppleness, and it is also a component of the human body. It has a special water retention effect, and its weight is up to 100 times its own weight. It is the best moisturizing substance found in nature so far. It is called It is an ideal natural moisturizing factor. It can improve skin nutrition metabolism, make the skin soft, smooth, wrinkle, increase elasticity, prevent aging, while moisturizing, it is also a good transdermal absorption enhancer. Used in conjunction with other nutrients, it can play a more ideal effect of promoting nutrient absorption. In January 2021, hyaluronic acid was approved for use in ordinary food as a new food raw material.