For a BBL, the most important credential to verify in the United States is certification by the American Board of Plastic Surgery, or an equivalent plastic surgery board in another country. The phrase cosmetic board certified can mean different things, so it is worth checking the surgeon’s actual residency training, hospital privileges, accredited operating facility, anesthesia team, and experience with gluteal fat grafting. BBL also has specific safety issues. Ask how the surgeon reduces risk, including fat placement only in the subcutaneous layer, whether ultrasound guidance is used, how blood clot prevention is handled, and how complications are managed. Consistent before-and-after photos and clear follow-up plans matter, but they should come after confirming training and safety standards.