Infrared saunas have moved well beyond niche wellness trend territory. From dedicated spa facilities and boutique gyms to home installations, more people across the UK are discovering the benefits of regular infrared sauna sessions and making them a consistent part of their routine.
But what actually happens to your body during a session, and why are so many people making infrared sauna a non-negotiable part of their week?
How Infrared Saunas Work
Unlike a traditional Finnish sauna, which heats the air around you to create an intense, humid or dry heat environment, an infrared sauna uses infrared light wavelengths to heat your body directly. The ambient temperature inside an infrared sauna is considerably lower, typically between 45 and 60 degrees Celsius, compared to the 80 to 100 degrees of a conventional sauna, yet the body still responds meaningfully to the heat.
This is because the infrared wavelengths penetrate beneath the skin’s surface, warming the body’s tissues directly rather than relying on the surrounding air to do the work. The result is a deeper, more efficient sweat at a temperature that most people find far more comfortable to sit in for longer periods.
Infrared saunas are broadly categorised by wavelength, near, mid and far infrared, each of which penetrates the body to a different depth and is associated with slightly different benefits.
Muscle Recovery and Physical Performance
Muscle recovery is one of the reasons infrared saunas have found a place in the routines of athletes and fitness enthusiasts. The heat is thought to increase circulation and encourage blood flow to tired muscle tissue, which may help with the delivery of oxygen and nutrients and the clearing of metabolic waste.
For anyone who trains regularly, many users find this may support reduced muscle soreness and a more comfortable recovery between sessions.
Stress Relief and Mental Well-being
Heat exposure is thought to prompt the release of endorphins, the same feel-good chemicals associated with exercise, and many regular users describe a noticeable lift in mood after a session. Beyond this, regular infrared sauna use has been associated with reduced cortisol levels, the hormone most closely linked to chronic stress.
Sleep Quality
If you struggle with sleep, infrared sauna sessions are worth considering as part of your evening wind-down. The heat raises your core body temperature during the session, and the cooling that follows as your body returns to normal is thought to help signal that it is time to sleep, mirroring the natural temperature drop that occurs as part of the sleep onset process.
Many regular users report falling asleep more easily and experiencing deeper, more restorative sleep on the nights they use their sauna. Scheduling a session an hour or two before bed tends to produce the best results.
Skin Health
The combination of increased circulation and deep sweating that comes with regular infrared sauna use may have a positive effect on skin health over time. Better blood flow is thought to help carry nutrients to the skin’s surface, while sweating can help to clear pores.
There is also emerging evidence to suggest that infrared heat may stimulate collagen production, which is associated with skin elasticity and a more even complexion.
*The wellbeing benefits described here are drawn from general findings and individual experiences and may not apply to everyone, so if you have an existing health condition or any concerns we would always recommend speaking to your GP before starting regular sauna use*
Bespoke Infrared Saunas Designed and Built by Sauna Plus
At Sauna Plus, we design, build and install bespoke infrared saunas tailored to your space and requirements. Every installation begins with your room and your routine rather than a fixed template.
Whether you are exploring a domestic installation for your home, or planning a commercial sauna for a gym, spa or hotel facility, we work with you from the first consultation through to a fully installed sauna, keeping the process straightforward at every stage.
Get in touch to find out more and book your no-obligation consultation.