Juvederm Evolence. Juvederm and Restylane (dermal fillers) are hyaluronic acids, a chemical that we all have in our dermis. It is a mucopolysaccharide and is the fluid buffer in our skin's infrastructure. Evolence is not being used currently but was manufactured from collagen of pig hide similar to the cow hide that was used for zyderm, and zyplast collagen injections of years ago.
Different Types. Evolence is a collagen filler which may last up to 12 months (recent data) and is most commonly used for correction of nasolabial folds. Juvederm is a hyaluronic acid filler which has a softer gel consistency and can be used for correction of lips, nasolabial folds, and other areas. In general, i prefer juvederm because it is softer, though evolence may cause less temporary swelling and bruising.