What’s hyaluronic acid? Hyaluronic acid (HA) is a naturally occurring glycosaminoglycan found throughout the body’s connective tissue. Glycosaminoglycans are simply long unbranched carbohydrates, or sugars, called polysaccharides. HA is the main component of what gives your skin structure, and is responsible for that plump and hydrated look. You may have heard the chatter around collagen, but…