Poly-L-lactic acid (PLLA)
Poly-L-lactic acid (PLLA) is a synthetic biodegradable polymer used in certain injectable particulate formulations. It is discussed as a collagen-stimulating material. It differs from hyaluronic-acid gels and from lactic acid used in chemical peels. Sculptra is one specific PLLA-containing product.
Gradual change and evidence limits
Immediate fullness can reflect the preparation fluid and swelling, rather than the final result. Improvement develops gradually. A randomized histology study in ten women reported tissue-remodeling findings, but its small sample cannot establish superiority over other treatments or detect uncommon complications. Discuss realistic goals and the complete treatment plan.
The product and treatment area matter
An inspected US Sculptra label includes specified facial wrinkle uses and facial lipoatrophy associated with HIV. It advises against injection into lip vermilion. These boundaries belong to that product and jurisdiction; they do not authorize every PLLA preparation or body area. Ask about the exact product and its intended use where you are treated.
Complications and correction
Bruising, swelling and discomfort can occur. Papules, nodules or granulomatous reactions may develop later. Rare vascular injury from filler injection can damage skin or vision and cause stroke. New visual symptoms or unusual severe pain need immediate clinical attention. PLLA has no specific reversal agent comparable to hyaluronidase for HA, so correction options should be discussed before treatment.
Read the original sources
Sources describe specific products, studies or countries. They do not establish approval everywhere.
General education. Your clinician can assess your individual suitability. Rules depend on the treatment country; FDA references concern the United States. External sources may be in another language.