What are the differences between juvederm & evolence?

Collagen/Hyaluronic. Juvederm is made up of hyaluronic acid molecules (the same that we naturally have in our bodies to help hydrate the skin). Evolence (which was discontinued by johnson and johnson in 2009) was made from collagen derived from pigs.
Different compounds. Juvederm is an injectable filler made from hyaluronic acid which is a naturally occuring substance found in the skin. Evolence is made from porcine collagen. Evolence was withdrawn from the us market in november of 2009.
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.
Juvederm. Juvederm is hyaluronic acid and Evolence is collagen. be sure to have your face evaluated by a board certified facial plastic surgeon.
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.