Hyaluronic acid is one of the inherent components of human skin, and its role is mainly to retain water and moisturize, making the skin look more hydrated and tender, and currently many skin care products also include hyaluronic acid inside. It’s role is mainly to make the skin draw maximum surrounding water, so that the water content in the skin increased, look more hydrated, tender, full, efficacy and role is the same, from the appearance of the skin will be more elastic, and rosy and lustrous, the beauty seekers will feel the skin is very elastic. However, it should be noted that the external use of hyaluronic acid is only limited, and it is best to make hyaluronic acid into a small molecule component directly under the skin, which will lock the water under the skin and reduce the evaporation on the surface of the skin, so that the water lock effect is maintained for a longer period of time.