Hyaluronic acid plays a vital role in metabolic processes such as cell interaction and synthesis. It helps protect cell immunity and helps prevent infections. One of its most important properties is its ability to retain moisture – up to 1000 times the weight of the acid itself. The natural repair of skin cells is directly dependent on levels of hyaluronic acid in the skin, which, unfortunately, decline as you age. This leaves skin more susceptible to toxins and all processes that require hyaluronic acid deteriorate. That’s why it’s so important for anti-ageing formulas to include hyaluronic acid.