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Restylane® filler is a clear, non-animal, biodegradable gel based on a natural substance, called hyaluronic acid Hyaluronic acid is a component of connective tissue whose function is to cushion and lubricate. Hyaluronic acid creates volume in the face, giving it a healthy, youthful appearance . Restylane creates volume, filling in folds and wrinkles. Restylane is [...]