The first treatment room people set up is usually over equipped in the places that do not matter and under equipped in the places that do. A better order of priority runs roughly like this.

Start with what happens when something goes wrong, because that determines whether you should be treating at all. Emergency kit first. For anyone injecting hyaluronic acid filler, that means hyaluronidase in date and on the premises, not on order. It means adrenaline and the knowledge of when to use it, because hyaluronidase itself can cause anaphylaxis. It means a way of calling for help and a written protocol on the wall rather than in your head. Buy this before you buy a nice chair.

Then the couch. It needs to go flat, it needs to sit up, and it needs to be height adjustable, because you will spend hours at it and your back will make the case eloquently if you get this wrong. Electric adjustment is worth the money. Everything else about the couch is preference.

Lighting is the next thing people underspend on. You need bright, neutral, shadow free light on the face, positioned so it does not move when you do. A good examination light on an arm will outperform an expensive ring light for clinical purposes, because your job is to see the anatomy accurately rather than to make the patient look good on camera. Keep the flattering light for the waiting area if you want it.

Infection control is unglamorous and non negotiable. A clinical wash basin with elbow or sensor taps, wipeable surfaces everywhere, a sharps bin fixed at the point of use rather than carried around, and a clear separation between clean and dirty areas even if the room is small. A sharps bin on the floor across the room is how needlestick injuries happen.

Storage next. A lockable fridge with a thermometer and a written temperature log if you hold anything that needs it. Lockable cupboards for stock. If you hold prescription only medicines, the storage and record keeping expectations are stricter and you should establish exactly what applies to your situation before you hold anything at all.

On documentation, decide early whether you are paper or digital and then be consistent. Half and half is how records get lost. Whatever you choose needs to handle consent, clinical notes, photographs, batch numbers and review appointments, and it needs to be backed up.

The waiting area matters less than people think, but privacy matters more. Patients should not be able to hear a consultation from outside the door, and they should not have to walk past other patients to leave. If the room is off a shared corridor, think about the route in and out.

A few things that are commonly bought and rarely needed at the start: a second treatment couch, branded gowns, a device you have not been trained on yet, and large amounts of stock. Filler has an expiry date and buying deep on a deal is how people end up with product they feel obliged to use.

Before you open, lie on the couch yourself and look at the ceiling. Whatever you notice, the patient will notice. Usually it is a stained ceiling tile or a light shining straight into their eyes.