Poly-L-lactic acid (PLLA) is the core ingredient of Sculptra, an injectable biostimulator. Sculptra is injected under the skin in a liquid consistency. Sculptra stimulates collagen production by incorporating it into your tissues once injected. Sculptra and Dermal filler are both designed to restore volume, smooth wrinkles, and reduce fine lines. After the age of 20, we lose 1% of our collagen per year due to the aging process, environmental stressors, and genetic predisposition. Skin thinning caused by collagen loss results in wrinkles and folds. The deep dermal layer of our skin contains collagen, a fibrous protein that gives it structure and helps to maintain its shape, moisture, and elasticity. In order to maintain smooth skin and a youthful appearance, collagen must be in a healthy supply.