Of all the questions a med spa owner answers, the one with the highest stakes per word is also the one most likely to be answered by assumption: who is actually allowed to hold the syringe, and under whose supervision? It feels like a settled fact — "my nurse injects, that's normal" — right up until you cross a state line, or a board examines your structure, and discover that the answer was never universal. Scope of practice doesn't travel. It's redrawn at every state border, and the injector who was perfectly legal in your old market may be practicing unlawfully in your new one.
This is general education for owners, not legal advice. Scope-of-practice and delegation rules are state-specific and change; confirm yours with healthcare counsel and the relevant boards.