Hyaluronic acid is extracted from rooster combs or made synthetically in the laboratory. Hyaluronic acid is found in the epithelial and conjunctive tissues in the human body. The highest concentrations are found in the fluids of the eyes and joints. Hyaluronic acid works by acting as a lubricant in tissues.
Hyaluronic acid is used in medicinal and cosmetic applications. It is used to treat joint disorders. When it is used for this purpose, it is either taken orally or injected by a healthcare professional. It is also approved for use during eye surgeries and as a lip filler in cosmetic surgeries. In skin care, it is used as a moisturizer and for healing skin ailments.