How often should you have HBOT?

There is no single HBOT frequency that is correct for every goal. Most research investigates a course of repeated exposures, but schedules vary widely. The honest starting point is a general interval, followed by dates that work in real life.

The clinic’s general intervals

The current operational guide ranges from:

• General wellness and healthy ageing: one session every 1 to 2 weeks.
• Sleep optimisation: 1 to 2 sessions per week for four weeks.
• Recovery after illness: two sessions per week for 3 to 6 weeks.
• Sports recovery: 1 to 3 sessions per week, depending on training intensity.
• Recovery after surgery: two sessions per week for 4 to 6 weeks, once medically cleared.
• Maintenance: one session every 1 to 4 weeks.

The complete interactive interval guide includes every approved booking goal and the precise wording used by the clinic.

These are general recommendations, not personalised prescriptions. They do not diagnose a condition, guarantee an outcome or prevent you choosing different dates.

Why do studies use repeated sessions?

Researchers usually investigate a defined “dose”: pressure, oxygen exposure, time at pressure, session frequency and total session count. If one of those variables changes, it may no longer be the same protocol.

This is also why “HBOT worked in a study” is incomplete. A useful comparison asks:

1. Who was studied?
2. What pressure and oxygen system were used?
3. How long was each session?
4. How many sessions were delivered?
5. What was the comparison group?

A 40-session study cannot prove that ten sessions will reproduce its outcome. A higher-pressure hospital protocol cannot automatically validate a lower-pressure private one.

How many HBOT sessions do research protocols use?

Three well-reported trials show how much schedules differ, and why the number of sessions belongs beside every result.

• Persistent symptoms after brain injury. A 2025 double-blind, sham-controlled trial gave 40 sessions over 12 weeks at 1.5 ATA, the pressure our chamber uses. The HBOT group improved more than the sham group, in a small trial of 47 analysed participants. Our head injury evidence guide sets out the detail.
• Long COVID. The HOT-LoCO trial gave 10 sessions of 90 minutes at 2.4 bar over six weeks, roughly two to three a week. It found no significant difference from a sham procedure at 13 weeks. Our HOT-LoCO summary explains what that can and cannot tell you.
• Preventing jaw bone injury after radiotherapy. The UK HOPON trial gave 30 daily sessions at 2.4 ATA before and after dental surgery. Rates of the complication were similar with and without hyperbaric oxygen.

Hospital programmes for late radiation injury also tend to involve daily sessions over several weeks. A 2023 Cochrane review of 18 studies found possible benefits for some injuries but said the best timing and dose remain uncertain.

The pattern is consistent: studies test a specific schedule, and their results belong to that schedule. Ten sessions is a sensible first review point for many people, not a replica of a 40-session trial.

Start with the first appointment you can actually attend

The booking flow begins with your preferred first visit. It then proposes the remaining course around the selected goal. You see the itinerary before checkout, and every proposed date can be changed.

That matters because an elegant theoretical schedule is useless if it collides with work, childcare or travel. The recommendation should help organise the diary; it should not take control of it.

Changing your stated goal after manually editing the itinerary does not erase those manual choices. Choosing a different first visit deliberately regenerates the proposed course from the new anchor.

What should shape your own schedule?

The interval guide is a starting point. A few practical questions usually decide what is realistic for you.

• Travel and time. Each visit is a 60-minute appointment plus the journey. Two sessions a week that you can keep are more useful than four that fall apart after a fortnight.
• Work, childcare and energy. Some people prefer the same weekday slot each week. Others fit sessions around shifts. The planner accepts either.
• How you tolerate the chamber. Ear pressure is the sensation most people notice. If clearing your ears is slow at first, a gentler pace in the opening week can make the course easier to finish.
• A review point. Decide in advance when you will take stock, for example after the tenth session, rather than judging each visit on its own.
• A simple record. A short note after each session about sleep, energy or the symptom that brought you in makes that review more honest than memory alone.

None of these change what the research found. They make it more likely that the schedule you choose is one you can actually complete.

What does maintenance mean here?

Maintenance is the broadest interval in the guide: one session every 1 to 4 weeks. The planner may need a practical starting point when suggesting dates, but that starting point must never be presented as the only correct interval.

Who can help you choose a schedule?

Reception can help adjust dates, and every Course includes a doctor consultation at no additional cost. No referral needed. Medical consultation included. Answers flagged by the medical declaration receive clinical review before treatment.

If you have a diagnosed condition, are recovering from surgery or are unsure whether pressure exposure is appropriate, continue working with your existing clinician. The interval guide does not replace that care. Current Course prices and what each option includes are on the pricing page.

The practical answer

Choose the goal closest to why you are attending, select the first appointment you can keep, then inspect the whole course. Treat the proposed interval as a transparent starting point. Change dates when you need to, and do not interpret frequency as a promise of benefit.