Collagen is a protein that provides the skin structure resulting in firmer and more youthful look. Starting at the age of 30, you lose about 10% of collagen in the face and will continue to lose an additional 10% with each decade. When natural collagen production slows down, it results in saggy skin, volume loss, and poor elasticity of the skin. Although the aging process cannot be stopped, it can be slowed down. Sculptra is a poly-L-lactic acid (PLLA) collagen stimulator and FDA approved to help gradually restore lost collagen, resulting in tighter and firmer skin.