Aesthetic Medicine laser treatment room with a person reclining under purple light on a treatment bed Aesthetic Medicine laser treatment room with a person reclining under purple light on a treatment bed

Hyperbaric Oxygen Therapy in London: What a Session at Le Petit Saint Actually Involves

At Le Petit Saint in Mayfair, we offer Hyperbaric Oxygen Therapy (HBOT) as part of our wellness programme. It is one of the quietest treatments we perform: you rest in a comfortable pressurised chamber, breathe, and let the elevated oxygen do its work. In this guide we explain what HBOT is, what a session actually involves, and what a course looks like, so you can decide whether it belongs in your routine.

What is hyperbaric oxygen therapy?

Hyperbaric oxygen therapy is a wellness treatment delivered inside a pressurised chamber. While you sit or recline in the chamber, the air pressure is raised gently above normal, which allows your bloodstream to carry more dissolved oxygen than it can at everyday pressure. That oxygen-rich blood then circulates through every tissue in the body.

The principle behind HBOT is simple. Skin, muscle and other tissue are oxygen-dependent: oxygen supports the processes by which the body maintains and renews itself. By increasing the oxygen available to the bloodstream, a session supports the body’s natural repair processes and promotes a sense of renewed energy and clarity. Many people describe leaving the chamber feeling refreshed, rested and clear-headed.

What does hyperbaric oxygen therapy do?

This is the question we are asked most often. In a session, the pressurised environment increases the amount of oxygen your blood can absorb. Clients typically seek the treatment for three broad reasons: to support recovery after travel, training or a demanding schedule; to complement their aesthetic treatments while the skin is in its repair cycle; and simply to feel restored.

On skin: the connection we speak about honestly is that skin is oxygen-dependent tissue. Supporting the body’s oxygen availability fits naturally alongside our skin treatments, and many clients book HBOT alongside facials, skin boosters or laser work as part of their overall skin health routine. Every person is different, and results vary; we always recommend a consultation first so we can advise what combination makes sense for you.

What does a session involve?

A session is unhurried and requires nothing of you. On arrival we welcome you, answer any questions and make sure you are comfortable. You then settle into the chamber, fully clothed, for the pressurisation phase. This is the part people are most curious about: as the pressure rises, you feel a gentle fullness in your ears, exactly like the sensation of a plane descending, and you relieve it by swallowing or yawning. It is mild and brief.

Once at pressure, the session is yours. Most clients read, use a device, listen to something or simply rest, and many describe it as the most relaxed part of their week. There is no downtime and no recovery period afterwards; you return to your day as normal, though we suggest staying well hydrated before and after your session to support oxygen uptake.

Allow around an hour at the clinic in total, including settling in and stepping down gently at the end of the session, when your ears will clear as pressure returns to normal.

Why people come to us for HBOT

Our Mayfair clients tend to book hyperbaric oxygen therapy for a handful of recurring reasons:

·       Recovery: after long-haul flights, intensive training blocks, or periods of pressure and poor sleep, to help the body feel like itself again.

·       Post-treatment support: alongside aesthetic treatments at the clinic, during the weeks when the skin is naturally renewing itself.

·       Skin health as part of a routine: because skin is oxygen-dependent tissue, HBOT sits comfortably within a wider skin health programme.

·       General wellbeing: a quiet hour of enforced rest, with clients reporting a lift in energy, mental clarity and overall vitality after a session

Who typically books a course

We see a broad mix. There are clients who fly frequently between London and elsewhere and want a reliable way to recover on arrival. There are those training for events who want recovery support in the weeks around their programme. A large group are existing aesthetic patients who add HBOT to their treatment calendar. And there are clients who simply value the hour of rest. What they share is an interest in prevention and restoration rather than a quick fix, which is exactly how we approach wellness at Le Petit Saint. 

What a course of HBOT looks like 

A single session is a restorative experience in its own right, and the clients who feel the most benefit tend to come as a course, because the effects of supporting oxygen availability build across a series. At consultation we will suggest a cadence: typically a run of weekly sessions, or a short intensive block, followed by maintenance as and when it suits your schedule. Courses and bespoke plans can be arranged through the clinic. During your consultation we will also confirm the protocol, session length and how HBOT might sit alongside your existing treatments, so the programme is built around you rather than around a template.

Hyperbaric chamber in Mayfair: what makes our clinic different

Le Petit Saint is a Mayfair clinic known for considered, consultation-led care in aesthetic medicine and skin health. Our wellness programme, including hyperbaric oxygen therapy, IV therapy and lymphatic recovery, was built on the same principle: advanced, technology-led treatment delivered with discretion, and never a protocol applied to a client who has not been properly assessed first. If you are searching for a hyperbaric chamber in London, we would rather you visited us, talked it through with the team and left with a plan that fits your routine.