Hyaluronic acid (HA) is a naturally occurring substance in the body, crucial for lubricating joints and hydrating skin, eyes, and tissues, acting like a sponge to hold massive amounts of water. It diminishes with age, leading to dryness and wrinkles, but is widely used in skincare (serums, moisturizers) and cosmetics (dermal fillers) to plump skin, reduce lines, and improve hydration