Hyperbaric Oxygen.
Breathing normally, you are limited by how much oxygen your red blood cells can carry. Under pressure, oxygen dissolves directly into your plasma, and that changes where it can reach.
- Raises the amount of oxygen dissolved in plasma, not just bound to haemoglobin
- The most studied modality in our facility, with decades of published research
- Entirely passive. Read, work, or rest for the duration
- Anchors the Capacity and Performance system alongside EWOT and IHHT
Oxygen, delivered differently.
At normal atmospheric pressure your haemoglobin is already close to fully saturated. Breathing harder does not add much, because the carrier is full. The constraint is not how much oxygen you take in, it is how much your blood can hold.
Pressure changes that. Under increased pressure, oxygen dissolves directly into the plasma itself, independent of red blood cells. Plasma reaches tissue that red cells cannot always serve well, and that is the entire premise of the modality.
Supervised throughout · entirely passive
The paradox at the centre of it.
The interesting part of hyperbaric oxygen is not the oxygen itself. It is what happens when the pressure comes off, and why the body reads that drop as a signal worth responding to.
Pressure Dissolves Oxygen
Henry's law states that the amount of a gas dissolving into a liquid rises with pressure. Increase the pressure around you while breathing oxygen and substantially more of it dissolves into your plasma rather than waiting for a seat on a red blood cell.
- Established physics rather than a proposed mechanism
- Plasma carries oxygen independently of haemoglobin
- Reaches tissue where circulation is compromised
Then The Level Drops
When the session ends, oxygen tension falls sharply back toward normal. The body reads that relative decline as though it were hypoxia, even though oxygen availability is entirely normal. Researchers call this the hyperoxic hypoxic paradox.
- A relative drop, not an actual oxygen shortage
- Repeated intermittent exposure is what creates the signal
- The reason protocols use courses rather than single sessions
Repair Pathways Activate
That perceived drop is studied for its induction of hypoxia inducible factor and vascular endothelial growth factor, the signals associated with new blood vessel formation. The literature also describes stem cell mobilisation and mitochondrial biogenesis following these protocols.
- HIF and VEGF signalling associated with angiogenesis
- Stem cell stimulation and migration described in the literature
- Mitochondrial proliferation reported in review papers
Why Dose And Protocol Matter
Not all hyperbaric protocols are equivalent. Pressure, oxygen concentration, session length, and the number of sessions all change the biological response. This is an active area of the research literature rather than a settled question.
- Pressure and hyperoxia dose alter the response
- Courses of sessions rather than one off exposure
- Your protocol is set by our clinical team, not by preference
What is established.
Hyperbaric oxygen has one of the deepest evidence bases of anything we operate. Here is what that literature actually supports.
The physics is not in question
That pressure increases dissolved oxygen in plasma is established physical chemistry, not a hypothesis. This is the foundation of hyperbaric medicine and the reason it has recognised clinical applications in hospital settings for conditions including decompression sickness and problem wounds.
The paradox is a defined research paradigm
The hyperoxic hypoxic paradox is a named and published concept, describing how repeated intermittent hyperoxia induces mediators normally triggered by hypoxia without any actual hypoxia occurring. It has a body of peer reviewed literature behind it, much of it focused on brain tissue.
Protocol determines the response
Much of the published work uses medical grade protocols at defined pressures with 100 percent oxygen delivered in supervised clinical settings. Dose matters here more than in most modalities, and results from one protocol should not be assumed to transfer to another.
Who tends to use it.
Screened before a first session, and not appropriate for everyone.
Athletes managing a heavy training block who want structured recovery support
People focused on cognitive performance, where much of the research has concentrated
Anyone who can commit to a course of sessions rather than trying it once
Members whose protocol prioritises the Capacity and Performance system
People who want a modality with genuine depth of published research behind it
Not suitable with untreated pneumothorax, certain ear or lung conditions, or some medications
What to expect.
Longer than most sessions here, and entirely passive throughout.
Preparation
- Screening confirms you are suitable before a first session
- Tell our team about ear or sinus congestion, which can affect equalising
- Cotton clothing, and no oils, lotions, or fragrance on the day
- Bring a book or device if you would rather not sit idle
The Session
- Pressure increases gradually. You will feel your ears needing to equalise
- Our team talks you through equalising, the same technique as flying
- Once at pressure you simply rest, read, or work
- Supervised throughout, with communication available at all times
Afterwards
- Pressure is released gradually at the end of the session
- No recovery period. Drive, train, or return to work
- Some people feel notably relaxed or a little tired at first
- Benefit in the literature comes from a course, not a single visit
Gradual compression · supervised throughout
Framed as mechanisms, not promises.
Each item describes what this modality is studied in relation to. None is a guaranteed outcome, and individual response varies.
Increased oxygen dissolved in plasma, which is established physical chemistry
Tissue oxygenation in areas where circulation is compromised
HIF and VEGF signalling, associated in the literature with angiogenesis
Stem cell stimulation and migration, described across review papers
Mitochondrial proliferation and biogenesis reported following these protocols
Upregulation of cell protective proteins including antioxidant scavengers
A substantial body of research focused specifically on brain tissue
Effects studied across courses of sessions rather than single exposures
A course, not a session.
This is the modality where trying it once tells you least. The research is built on repeated intermittent exposure, and your protocol reflects that.
We measure where you are
VO₂ Max and InBody establish your baseline, and screening confirms whether hyperbaric oxygen is appropriate for you at all before anything is scheduled.
We set the course
Frequency and number of sessions are set deliberately, because the mechanism depends on repetition. A course is planned rather than sessions booked ad hoc.
We retest
Your markers are measured again at a defined point. What continues or changes is decided on data rather than on how a session felt.
The deepest evidence base we operate.
Hyperbaric oxygen has decades of peer reviewed research behind it. These are papers on the mechanism, linked so you can read the source rather than take our word for it.
Repeated intermittent hyperoxia induces many of the same mediators and cellular mechanisms normally triggered by hypoxia, without any hypoxia occurring. Researchers named this the hyperoxic hypoxic paradox.
The hyperoxic hypoxic paradox
Hyperbaric oxygen and the brain
Hyperbaric therapy according to dose of pressure and hyperoxia
Hyperbaric oxygen therapy as a neuromodulator
Strong evidence, and protocol still matters
This is the deepest literature behind any modality we operate, and we are glad to point you straight at it. One thing worth carrying with you as you read: much of this research uses defined medical protocols at specific pressures in supervised clinical settings, and the dosing paper above exists precisely because those variables change the response. Our clinical team will tell you exactly how our protocol relates to the published work.
Questions answered.
What does it actually feel like?
Like the descent on a flight. As pressure increases you feel it in your ears and equalise the same way, and our team talks you through it. Once at pressure there is nothing to feel and nothing to do. Most people read, work, or sleep.
Is it claustrophobic?
Some people find the idea uncomfortable before their first session and almost none after. You can see out, communicate with our team throughout, and the session can be ended at any point. Tell us beforehand if this concerns you and we will walk you through the chamber first.
How many sessions do I need?
More than one, and that is the honest answer. The research is built on repeated intermittent exposure, because the signal comes from the cycle rather than from a single session. Your course is set during your consultation.
Is it safe?
It is well established and supervised throughout, but it is not for everyone. Untreated pneumothorax, certain ear and lung conditions, and some medications are contraindications. Screening before a first session exists to identify those.
Will my ears be a problem?
Ear discomfort is the most common issue and it is manageable. We compress gradually and coach you through equalising. If you are congested we will reschedule rather than push through, because that is when problems occur.
How is this different from EWOT?
EWOT delivers enriched oxygen while you exercise, using exertion to drive circulation. Hyperbaric uses pressure instead, requires nothing of you physically, and works through a different mechanism. They sit in the same system and are often sequenced together.
Can I use it on training days?
Yes, and timing is worth getting right. Whether it sits before or after your training depends on what you are after, and our team schedules it deliberately rather than leaving it to chance.
Does it reverse ageing?
We will not put it that way. There is genuinely interesting research on hyperbaric protocols and biological markers of ageing, and it is worth reading. It is not the same as a claim that a course of sessions reverses ageing, and we would rather you read the papers than take a headline from us.
Is it included in membership?
Access depends on your tier. Circuits are the unit of membership, and hyperbaric sessions are scheduled as a course within your protocol rather than booked individually.
Sequenced deliberately.
Modalities in this system address different parts of the same chain. These are the ones most often paired with it.
EWOT
Enriched oxygen delivered during light exertion, using movement rather than pressure to drive circulation.
Hypoxia-Hyperoxia Training
Alternating oxygen concentrations at rest, working the same adaptive signalling from a different direction.
Oxygen & Capacity
See how this modality sits alongside the others addressing delivery, extraction, and utilization.
Reserve Your Consultation.
Because this modality works as a course, planning matters more than booking. In your consultation we will:
- Understand what you are actually trying to change
- Screen for anything that would rule this modality out
- Set a course rather than a single session
- Explain how our protocol relates to the published research
- Build a protocol across the systems that matter for you