Sculptra® us a unique re-volumizing agent made of a carbohydrate called poly-lactic acid.   Sculptra®  stimulates collagen regrowth in areas of volume loss.  Sculptra®  can be used to gradually increase skin thickness and thereby replenish volume loss under the eyes, in the hollows of the cheeks, the temples, and on the back of the hands.  The effects of Sculptra®  last about 4 years.