Popularly called “The Fountain of Youth”, it is a common ingredient in skin care products, added for its skin rejuvenation properties. Aromantic's Hyaluronic Acid Gel is made by producing enzymes from a bacteria-based biofermentation process and NOT sourced from poultry (roosters' combs), as are many others. For More information visit http://www.aromantic.co.uk/home/products/active-ingredients/hyaluronic-acid-gel.aspx