It is a crystal-clear, non-animal, biodegradable gel based on a natural substance, called hyaluronic acid. The gel is injected into the skin in tiny amounts with a very fine needle to create a smoother, younger appearance by improving fine lines and wrinkles, plumping lips, improving scars, elevating deep folds, and repairing various facial imperfections. Dermal fillers can give a more natural appearance than surgical face lifts.