Sculptra, or Poly L lactic acid (PLLA), is one of the most effective rejuvenating treatments for your face. Sculptra is not a filler but rather a suspension of tiny particles known as Poly-L-lactic acid. This substance has been used in the operating room as a surgical suture for many years and has been proven safe in millions of patients. When used as an aesthetic treatment, Sculptra injections stimulate fibroblast cells to produce the collagen. This collagen growth restores facial volume and the look of fullness to wrinkles and folds.