Cryotherapy (Whole-Body and Localised)
Cryotherapy uses very cold air to cool the body for a short time. In a whole-body session you stand in a chamber or open-topped cabin, usually for around two to three minutes, while the surrounding air is chilled well below freezing. Localised cryotherapy instead directs a stream of cold air onto a single area, such as a sore knee, shoulder or the face, for a longer few minutes. People try it for post-exercise recovery, easing muscle soreness, a sense of alertness and general wellbeing. It is best understood as a complementary wellness treatment rather than a medical one. Whole-body cryotherapy is not cleared or approved as a medical device by regulators, and the current research base is still limited and mixed, so honest providers describe how it may feel rather than promising it treats or cures any condition. The cold triggers the surface blood vessels to narrow and then reopen as you warm up, which many people find leaves them feeling refreshed. It is generally considered safe for healthy adults when a trained operator screens you first, supervises the whole session and provides proper protective wear for your hands, feet and airways.
Book with a studio that screens you before your first session, because your suitability matters more than anything else here. Expect to complete a health questionnaire and mention any heart or circulation problems, high or low blood pressure, Raynaud's or cold sensitivity, nerve or sensation issues, diabetes, pregnancy, or any recent surgery or illness. If you have a medical condition or take regular medication, speak to your GP first. On the day, arrive with clean, completely dry skin, as any moisture, lotion or sweat can raise the risk of a cold injury. Remove all jewellery, watches and metal, and take out contact lenses if advised. Avoid alcohol beforehand and do not attend if you feel unwell or feverish. Wear or bring dry underwear, and the studio should supply gloves, thick socks, footwear and a face or airway covering. Tell staff if you are claustrophobic, as an open-topped cabin may suit you better than an enclosed chamber.
A member of staff should stay with you and explain everything before you begin. For a whole-body session you undress to underwear, put on the supplied gloves, socks, footwear and face protection, and step into the chamber or cabin, typically for two to three minutes. The air is extremely cold, so the operator will keep talking to you, watch how your skin and body respond, and stop early if needed rather than pushing you to a fixed time. You can usually ask to come out at any point. In an open-topped cabin your head stays above the cold air; in a fully enclosed chamber your whole body is exposed. A localised session is more relaxed: you stay dressed and a handpiece directs cold air over one area for several minutes while the therapist moves it to avoid over-cooling any single spot. Throughout, tell staff immediately if the cold feels painful, numb or unbearable, rather than trying to tolerate it.
Let your body rewarm gradually and naturally rather than jumping straight into a hot shower or sauna. Gentle movement, such as a short walk or light cycling on the spot, helps your circulation settle and many studios encourage it. Drink water to stay hydrated. Your skin may look pink and feel tingly for a little while as it warms, which is usually normal, but check your hands, feet and any localised area for patches that stay very pale, waxy, blistered or numb, as these can signal a cold injury that needs attention. Redress in dry, warm clothing and keep extremities covered if it is cold outside. Avoid vigorous exercise immediately afterwards until you feel fully warmed and steady. If you feel dizzy, faint or unusually breathless, sit down, tell staff and seek medical advice. There is no lasting recovery period, so you can generally return to your day, spacing sessions as your provider advises.
Safety here rests on proper screening, supervision and equipment, because the risks come mainly from how a session is run rather than the cold itself. Never use whole-body cryotherapy alone or unsupervised; a trained operator should be present for the entire session and able to stop it instantly. Your skin must be dry, all jewellery removed, and hands, feet and airways protected against frostbite and cold burns. Some older chambers are cooled with liquid nitrogen, which can lower the oxygen in an enclosed space, so good ventilation, oxygen monitoring and never entering an enclosed nitrogen chamber that fully encloses your head are important safeguards. A serious asphyxiation incident has been reported abroad, which is why supervision and equipment standards matter. Sessions should be time-limited to a few minutes and adjusted to how you respond. Whole-body cryotherapy is not a regulated medical treatment in the UK, so choose a reputable, insured provider with clear health screening and emergency procedures.
Treat cryotherapy as complementary rather than a substitute for medical care, and do not rely on it to diagnose, treat or cure any condition. A number of health issues make it unsafe. Do not have whole-body cryotherapy if you are pregnant, or if you have unstable or uncontrolled heart disease, uncontrolled high blood pressure, a recent heart attack or stroke, serious circulation problems such as peripheral artery disease, or cold-triggered conditions like cryoglobulinaemia or cold urticaria. Caution is also needed with Raynaud's, diabetes with nerve damage, epilepsy, severe lung disease, uncontrolled thyroid problems, active infection or fever, open skin lesions, and reduced skin sensation. Some expert guidance advises against it above around 80 years of age. If you take regular medication, have any long-term condition, or have a pacemaker or implanted device, check with your GP or specialist before booking. Tell the studio about everything relevant on your health form; a responsible provider will decline or refer you when a session is not appropriate.
A skin patch test is not used for cryotherapy. The equivalent safeguard is a thorough pre-treatment consultation and health screening, which matters just as much for your safety and for the provider's liability. Before your first session you should complete a health questionnaire covering heart and circulation conditions, blood pressure, cold sensitivity, diabetes, nerve or sensation problems, pregnancy, medication and recent surgery or illness, and staff should review it and check your suitability. This screening exists because the real risks, such as cold injury, fainting or a cardiovascular reaction, depend on your individual health rather than a skin reaction. Skipping or rushing it leaves you exposed and can leave an insured practitioner found at fault if something goes wrong. If any answer raises a concern, a good provider will pause and ask you to get GP clearance before proceeding.
Be cautious if a studio lets you use a chamber with no staff present, skips any health screening, or promises it treats, cures or replaces medical care. Pressure to stay in for longer than a few minutes, or to ignore pain, numbness or distress, is a warning sign. Missing or damp protective gloves, socks and face covering, no way to exit quickly, and a fully enclosed nitrogen chamber that encloses your head with no oxygen monitoring or ventilation are all serious concerns. So is a provider who cannot explain their contraindications, has no emergency plan, or dismisses your medical history. Bold claims about weight loss, curing illness or guaranteed results should make you doubt the studio's honesty. Any skin that turns very pale, waxy, blistered or stays numb means stop and seek advice.
Good providers screen every client with a health questionnaire and are willing to turn people away when a session is not suitable. Staff stay with you for the whole session, keep talking to you, watch how you respond and stop early if needed. They supply clean, dry gloves, socks, footwear and face or airway protection, insist your skin is dry and jewellery removed, and keep sessions to a few sensible minutes. They explain how the treatment works in honest, realistic terms, describe it as a wellness or recovery aid rather than a medical cure, and answer your questions clearly. Well-run studios maintain and monitor their equipment, have proper ventilation and emergency procedures, hold appropriate insurance, and encourage you to check with your GP if you have any health concerns before booking.
- What health screening do you carry out, and are there any conditions or medications that would make cryotherapy unsafe for me?
- Is a trained member of staff present for the whole session, and can I stop or leave at any point?
- How is your chamber cooled, and if it uses nitrogen, how do you monitor oxygen levels and ventilation?
- How long will my session last, and how do you protect my hands, feet and airways from cold injury?
- What are the realistic benefits and limits of this treatment for what I want to achieve?
- What are your insurance, hygiene and emergency procedures, and how often is the equipment serviced?
The cold is intense and unmistakable, but most people describe it as sharp yet bearable rather than painful. In a whole-body session you feel a rapid, all-over chill, sometimes with a tingling or prickling on the skin and a strong urge to keep moving or fidget, which is normal. Your skin may feel tight and then flush pink as you warm up afterwards. A localised session feels like a concentrated stream of cold on one area, building gradually rather than the sudden bite of an ice pack. Afterwards many people feel alert, light or refreshed. What you should not feel is deep numbness, burning pain or any spot that goes numb and stays that way, so speak up straight away if the cold stops feeling tolerable.
There is normally no downtime, and most people carry on with their day straight after a session. Any skin redness, tingling or a flushed feeling typically settles within minutes to an hour as you fully rewarm. Some people feel briefly light-headed or notice their skin is sensitive for a short while. You should feel back to normal quickly; if numbness, pain, blistering or discoloured skin lingers, treat that as a possible cold injury and seek advice. Sessions are usually spaced out over days rather than stacked, and your provider can suggest a sensible frequency for your goals.
Any effects from cryotherapy tend to be short-lived rather than permanent, so people who value it usually return regularly, often as part of a wider routine of exercise, rest and recovery. Many report feeling refreshed, more alert or less sore for a while after a session, though individual responses vary and the evidence base is still limited, so it is best approached with realistic expectations. Your provider can tailor the experience by adjusting session length, the temperature settings within safe limits, and whether you choose whole-body or a localised treatment aimed at a specific area. A localised session lets you focus on one sore joint or muscle, while a whole-body session gives a broader effect. Because benefits do not build up in a lasting way, there is no fixed course to complete; sensible spacing between sessions and honest guidance from your studio matter more than doing them as often as possible. If you are using it to support recovery from a genuine injury, treat it as an add-on to, not a replacement for, proper physiotherapy or medical care.