Most of what is sold as deep tissue is not deep. It is hard. Those are different things. Hard pressure is a practitioner leaning into a thumb until the client winces. Deep pressure is a slow, sustained sinking into a layer of the body that takes time to reach. The first is theatre. The second is the work.
I learned this from an older practitioner in Florence the year I lived there. She would put her forearm on the side of my back and stay there, motionless, for what felt like a very long time. I would wait for her to do something. Then I would realise she was already doing it. The forearm was sinking, slowly, through layers I had not known were there.
Why hard pressure does not reach the deep
When a practitioner pushes hard, the surface of the body responds first, and the response is protective. The muscle braces. The fascia tightens. The deeper layers, which is where most chronic holding lives, become more sealed-off, not less. You get a bruise on the surface and the deep layers go nowhere.

When a practitioner sinks slowly, the surface has time to unguard. The fascia releases its grip. The deeper layers become reachable. The pressure that finally lands there is not enormous. It is sustained, and it has been earned.
A practitioner who knows this works much more slowly than a client expects. They will often spend half a session on what looks, from the outside, like very little. What is happening is patient. The session ends and the client is — and this is the marker — sore the next day in a way that feels like work having been done, not in a way that feels like injury.
What to ask before booking deep work
Ask the practitioner how long they spend on each area. If they say 'until it releases', good. If they say a number that sounds short — eight minutes, ten minutes for an entire posterior chain — keep looking. Ask whether bruising is normal. If they say it is, keep looking. A good deep tissue session should not leave bruises. It should leave a body that feels, for two or three days, like it has been quietly reorganised.
Deep is a depth, not an effort. Hard is an effort, not a depth.
There is a small studio in our neighbourhood here in Lyon where the practitioner does deep work this way. She has a waiting list of about three months. I tell new clients about her and most of them, when they finally get in, come back surprised that the work did not hurt. That is the marker. That is what you are looking for.

