The Restylane collection of fillers is made from hyaluronic acid (HA), a natural substance in the skin that delivers nutrients, helps the skin retain moisture and softness, and adds volume. The Restylane line of products is designed to act like your body’s own naturally produced hyaluronic acid. Our technology allows a unique particle size for each Restylane product, which means they offer tailored treatments for individual, natural-looking results. Finer particles for fine wrinkles and detailed shaping, medium-sized particles for moderate to severe wrinkles and folds, and larger particles for severe wrinkles and greater volume.