The standards behind every treatment, written down and published rather than kept in a drawer. Most clinics do not show you these.
Publishing these is a deliberate choice. Nursing practice runs on written policy, and a clinic carrying out medical treatments should be able to show you exactly how it handles consent, medicines, infection control and things going wrong. If a practitioner cannot show you theirs, that tells you something.
How treatments are carried out, and the standards behind them.
What you are told before treatment and your right to change your mind.
How prescription medicines are assessed, prescribed and stored.
Single-use equipment, sharps handling and safe waste disposal.
Your right to have someone present at any appointment.
What happens after treatment, and what to do if something is not right.
Safeguarding, images and the information the clinic holds about you.
The practical terms that apply when you book.