Choosing a depth opens the chemical peel sequence, ahead of anything else you discuss. It gives the agent, the downtime and your questions something to attach to.
What to prepare for the depth conversation
Write down what you want the peel to change, which dates you must keep clear, and any earlier peels you have had. If you have been reading about at-home options, the beginner's guide to at-home chemical peels is a reasonable place to see the range before the appointment. The site is based in Merced and covers all of Madera County, and the same sheet works at any clinic you compare there.
Walking through the depth words
A review in PubMed Central states that superficial peels penetrate the epidermis only, medium-depth peels affect the entire epidermis and papillary dermis. That gives you the first two terms in order. Ask any practitioner to define the third term, deep, in equally plain words before you agree to anything. For the full review, see a practical approach to chemical peels, which sets out its protocol step by step.
Why recommended depths vary between practitioners
The depth terms above are shared language. Which depth a given practitioner recommends for your skin is the point where advice varies, so ask for reasons rather than a number. The question do chemical peels work is a good second read to bring along.
Carrying your chosen depth into the agent decision
The peel agents guide follows, covering the solution used to reach the depth you chose. Write the depth you are leaning toward at the top of your sheet so it is there for the booking call.