RestylaneRestylane is a brand of FDA approved, hyaluronic acid based dermal fillers used in cosmetic procedures to add volume to the face, smooth wrinkles, and enhance the lips. The gel is non animal based, biotechnologically produced, and acts by integrating into the skin and attracting water to create volume and fullness. Common applications include correcting nasolabial folds, plumping lips, and softening facial lines. Side effects can include swelling,