Hyaluronic acid is a clear and gooey substance and it is naturally occurring in human body which helps your cells retain. Most of the HA can be found in our connective tissue and skin. It is commonly used for keeping skin moist and hydrate as it can attract and hold the water in the outer layer of the skin. 

However, the amount will keep decreasing due to the natural aging process and exposure to ultraviolet radiation from the sun, tobacco smoke, and pollution. By applying Hyaluronic acid to the surface of the skin can reduce wrinkles, redness and increase skin moisture.