Hyaluronic acid is a non-sulphated glycosaminoglycan, which is distributed widely throughout the body in the epithelial, connective and neural tissues. It is one of the main components of the extracellular matrix and contributes significantly to cell migration and proliferation. The average person has approximately 15 grams of Hyaluronic acid in their body; out of which one-third is utilised and replaced daily.
The layers of the skin are supported from below by columns of fibres made up mostly of collagen. This network of fibres forms the molecular sponge known as connective tissue. Hyaluronic acid is a viscous, gooey substance that helps in lubricating the joints and sustaining their shape. It is used as an injectable because it naturally occurs in our skin.