Bellafill is a PMMA filler, a type of injectable dermal filler that combines collagen with polymethyl methacrylate (PMMA) microspheres. The collagen provides immediate volume, while the PMMA microspheres remain in place long-term to support ongoing structure. It is used to treat depressed acne scars and can also be injected into lips for volume.

Bellafill works best for people with depressed or pitted acne scars who want a longer-lasting correction. Candidates should have realistic expectations about scar improvement and be comfortable with a permanent implant. A provider will assess your scar depth and skin type to determine suitability.

The provider cleanses the area and may apply topical numbing cream or local anesthesia. Bellafill is injected into the scarred or volume-deficient areas using a fine needle. The appointment typically takes 15 to 30 minutes depending on the extent of treatment.

Mild redness, swelling, and bruising are common and usually fade within a few days. Most people resume normal activities immediately. Avoid strenuous exercise and excessive heat for a few days to minimize swelling.

Visible improvement appears over the first few days as swelling subsides. Results continue to improve as the collagen integrates and the PMMA microspheres establish support. Because PMMA is permanent, results are long-lasting, though collagen may gradually break down over time.