The page describes hyaluronic acid as a gel-like substance naturally present in the body, also known as a humectant, meaning it helps retain and preserve moisture. It is found in the skin, eyes, joints, and connective tissues, where it keeps cells moist and lubricated. The page states that hyaluronic acid plays a major role in the growth of new cells and tissues, helps maintain moisture and cell permeability, and may support the body in restoring and replacing damaged cells. Our natural levels of hyaluronic acid decline with age, which is what makes supplementation relevant.