Nature's moisturiser. Hyaluronic acid is composed of hydrophilic molecules of the glucosamine family, which bind to water and lubricate moveable parts of the joints and muscles. The skin is another area where HA nourishes and hydrates. Hyaluronic Acid 50mg Veg Caps is part of the Viridian Nutrition range of nutritional supplements and beauty products dedicated to Purity, the Environment and Charity.