When you hear the word ‘sauna’ you automatically picture a wooden room where people struggle to cope with the stifling heat! Although some people love saunas, there are plenty of people who find the experience unbearable because of the intense heat.

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That’s where an infrared sauna such as those made by Sunlighten comes in. An infrared sauna offers all the sauna benefits, without having to expose the user to an intense and uncomfortable heat.

In this article we’re going to look at infrared saunas and how they work. 


We’ll start with the obvious point… What are infrared saunas?

Infrared saunas are an effective tool for natural healing and prevention. They produce a variety of infrared rays. These penetrate the body, gently warming the tissues. The infrared rays only work on the body, so the air temperature remains warm, not hot. 

Thanks to the rays only warming the body, no energy is wasted by the machine. The rays penetrate the skin up to a depth of 3-4cm, raising body temperature by around 3 degrees. This is enough to stimulate a sweat response but not make you uncomfortable.

The machines can be set to illicit a range of responses, such as cardiovascular health benefits, sweating to detox, improved muscle recovery etc. 


Infrared is a perfectly safe, invisible form of light waves. They are produced by an infrared element, not unlike the kind you see on a neonatal unit in a hospital. They provide a gentle warmth rather than high heat.

The infrared comes in a variety of spectrums, near, mid, and far. These penetrate the skin to different depths, bringing about the changes in the tissues. 

The infrared sauna is incredibly relaxing. They’re quiet, easy to use and offer a wide range of health and wellness benefits. They don’t require much in the way of set up, the running costs are low and there is a lot of evidence in support of their use.


The first and most obvious point is that a full spectrum sauna like the ones from Sunlighten open a world of saunas to those who previously wouldn’t go into one.

The sauna benefits are numerous. One major study looked at the impact of far infrared sauna bathing on recovery after endurance exercise. The researchers concluded…

‘Infrared sauna bathing appears favourable for the neuromuscular system to recover from maximal endurance performance. Far Infrared Sauna bathing is a very light loading for the body and provides a comfortable and relaxing experience.’ 

Another study looked at the use of infrared saunas being used as part of a pain management strategy. They concluded that…

‘…repeated thermal therapy (sauna use) may be a promising method for treatment of chronic pain.’

There’s also an appreciation that infrared saunas offer excellent general health support. Whilst this isn’t medical treatment, the sauna benefits will promote a well-functioning body and help to stave off a range of ailments.

In a study published in the Alternative Medicine Review from 2011, the researchers concluded that…

‘Overall, regular sauna therapy (either radiant heat or far-infrared units) appears to be safe and offers multiple health benefits to regular users.’


Having stood the test of time, infrared saunas have proven themselves to be a valuable health and wellness asset to a wide range of people. They also allow access to the benefits of saunas to people who are put off by the high temperatures of a traditional sauna. 

RP-X are the leading providers of Sunlighten Infrared Saunas in the UK. We have nearly two decades in the space and offer a wide range of turnkey solutions for facilities looking to invest in this technology. 

For more information on cryotherapy chambers, pricing and the right model for you, contact us on info@rp-x.com or 01234 86762.

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