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. The hyaluronic acid that is used as medicine is extracted from rooster combs or made by bacteria in the laboratory.
People take hyaluronic acid for various joint disorders, including osteoarthritis and joint pain. It can be taken by mouth or injected into the affected joint by a healthcare professional. Hyaluronic acid can also be injected directly into the bladder for women with frequent urinary tract infections (UTIs) and be taken by mouth for acid reflux.
The FDA has approved the use of hyaluronic acid during certain eye surgeries including cataract removal, corneal transplantation, and repair of a detached retina and other eye injuries. It is injected into the eye during the procedure to help replace natural fluids.
