If you have never been to a med spa, the first question is simple: what actually happens when you walk in?
It should begin with a consultation
The downbeach.com article on first visits says: "A first visit to any reputable medical spa should begin with a consultation, and that consultation should be substantive rather than a sales pitch in disguise."
So expect a conversation first. If the visit opens with a sales push, that is worth noticing.
Cheap, simple preparation
Preparing costs only time. Read a first-timer's account such as GlowUpFinder's what to expect at a first med spa visit and see how a med spa consult is described in San Antonio Woman. Then use 10 questions to ask before your first med spa visit as a list to bring with you.
What stays with the clinician
Whether a treatment is right for you is not a do-it-yourself decision. That judgment belongs to a licensed clinician at the consultation.
Go with your questions written down. Asking the basic ones is exactly what a consultation is for.