What is Infrared?
We help you “see” infrared in this video.
Animation helps make what’s invisible visible, so we created this 2-minute video to help you better understand what infrared is and how our bodies interact with it. Our bodies are like solar panels designed to absorb infrared light, which activates our body’s cells for vitality and energy. Watch to learn more!
Why People Trust Sunlighten’s Infrared Light Therapy
Patented Infrared
Sunlighten’s SoloCarbon® far infrared heaters are patented, meaning when you choose Sunlighten you can have peace of mind that you are getting the most infrared-dense sauna on the market for most effective results.
Absorption
Sunlighten’s heaters are third-party tested 95-99% emissive, which proves our patented heaters and combinations of wavelengths in all of our saunas do what we say they do: emit the wavelengths the body absorbs best.
Purest Frequency
Only Sunlighten technology delivers specific infrared wavelengths that are dialled in to what the body absorbs best, like tuning your radio to the clearest channel, or like choosing supplements that are pure and free of extra fillers.
Personalised
One size doesn’t fit all and only Sunlighten’s technologies give you option to choose the experience you want for yourself. From the simplicity of a single button in a Signature or Amplify to the world’s only sophisticated Smart Sauna with 6 pre-set wellness programmes.
Science-Backed
We led the infrared sauna industry by being the first to combine light science with published studies of how infrared affects the body; other companies followed us. We have the patent on our heaters and NASA-inspired LED panels which means only ours emit precise wavelength combinations.
Proven Technology
Studies are costly and complex. Not many sauna companies have had clinical studies done on their saunas. Sunlighten has three studies using our technology that have proven ours temporarily lower BP, reduce waist size and increase flexibility.

- Foundational infrared wavelength (9.4 microns)
- Only FIR heater clinically proven to raise core body temp 3°
- Absorbed by water cells
- Activates sweat glands, deep detoxifying sweat
- Energises and revitalises, not draining heat
- 95-99% emissivity = maximum absorption/bioavailable wavelengths
Sunlighten’s Science Advisory Board
These experts contribute to our understanding of infrared light science and how infrared interacts with the body, providing a variety of perspectives on the spectrum of health and wellness practices—from alternative to traditional medical approach.
Experience Infrared
Be Inspired
3 min read
First Timers Guide to Sitting in a Sauna
What to expect and how to prep so that your mind and body get benefits long after you’ve stepped out of the sauna.
REFERENCES
1. Introduction to Chemistry, Introduction to Quantum Theory, Chapter: The Nature of Light, Lumen Learning.com OER https://courses.lumenlearning.com/boundless-chemistry/chapter/the-nature-of-light/
2. How Bodies react to IR energy: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3699878/