Hyaluronic acid is a substance that is naturally present in the human body. It is found in the highest concentrations in fluids in the eyes and joints.
Some people take hyaluronic acid for various joint disorders.
For cosmetic use, Hyaluronic acid is also used as a lip filler in plastic surgery. Some people apply hyaluronic acid to the skin for healing wounds, burns, skin ulcers, and as a moisturizer (humectant).
Hyaluronic acid is also used for anti-aging formulations due to its ability to help with skin elasticity.