Hyaluronic acid is a naturally occurring substance in the body that has various functions and benefits. It is a gooey, slippery substance found in the extracellular matrix of epithelial and connective tissues, especially in the eyes, joints, and skin. Its primary function is to trap water inside tissue cells, making it a key ingredient in moisturizing products. Some of the benefits of hyaluronic acid include promoting skin health, reducing the appearance of wrinkles, improving wound healing, and relieving joint pain in people with arthritis. It can increase the moisture content in the skin, improve skin elasticity, and reduce skin roughness. Hyaluronic acid is commonly used in various forms, including dietary supplements, face creams, serums, eye drops, and injections. However, its important to note that most over-the-counter products contain hyaluronic acid molecules that are too large to pass through the outer layer of skin cells. Therefore, when considering hyaluronic acid products, its essential to pay attention to the molecular weight and concentration for maximum effectiveness. While hyaluronic acid has numerous benefits, its crucial to be aware of potential side effects and risks associated with its use, which can vary depending on the form of administration.