What is Episilk™ PHA(Pure Hyaluronic Acid) Serum? Episilk Serum is a HA facial serum that contains a non-animal derived form of Hyaluronic Acid to help support and hydrate the skin. What is Hyaluronic Acid? Hyaluronic Acid is a special mucopolysaccharide occurring naturally throughout the human body. One of the most heavily researched substances today. Its function in the body is, amongst other things, to bind water and to lubricate movable parts of the body, such as joints and muscles. Its consistency and tissue-friendliness allows it to be used in skin-care products as an excellent moisturizer. Hyaluronic Acid is one of the most hydrophilic (water-loving) molecules in nature and can be described as “nature’s moisturizer”. Why is Hyaluronic Acid so important to the skin? Young skin is usually smooth and highly elastic because it has been known to contain high concentrations of Hyaluronic Acid, which helps skin stay healthy. As we grow older, the body loses its ability to maintain this same concentration in the skin. As a result, the skin can have an unhealthy appearance. How long has Hyaluronic Acid been used? Hyaluronic Acid was first used commercially in 1942 when Endre Balazs applied for a patent to use it as a substitute for egg white in bakery products. He went on to become the leading expert on HA, and made the majority of discoveries concerning HA. Hyaluronic Acid has long been used in some of the top selling commercial skincare products to support skin hydration. Because it is an acid will it burn my skin? Hyaluronic Acid is often called an acid and this is a misnomer. Hyaluronic Acid as a sodium salt (sodium hyaluronate)(Episilk™) will have a neutral pH measurement not an acidic. Because of the water binding capacity of Hyaluronic Acid, it is actually very good for skin health.