Articles + Interviews

Research and Conversation

What is red light therapy?

Guest Article: Vladimir Heiskanen

Red light therapy is a form of treatment in which body parts are locally irradiated with visible red light or invisible near-infrared light to treat various indications as well as improve overall metabolic function. In this guest article, Vladimir Heiskanen goes into the history and mechanisms, as well as current and future research, to help illuminate and demystify red light therapy. 

Many people are surprised when they find out how low the total doses used in much of the research on red light therapy are, especially when compared to the amount one would typically be exposed to while outside on a sunny day. In this article we'll try and explore why that is, and why at-home full-body use may require larger doses. 

A lot of advertising for red light therapy centers around exercise and recovery in particular. In this article we'll take an evidence-based look at how useful red light therapy really is for muscle growth, recovery and injuries. We'll also take a look at how to best go about implementing red light therapy for performance and recovery enhancement when it comes to resistance exercise.  

Red Light Therapy and Skin Health

Guest Article: Vladimir Heiskanen

Red light therapy has evidence of beneficial effects on skin, both for a number of specific skin disorders, as well as for generalized improvement of skin and reducing signs of skin aging. In this article Vladimir Heiskanen explores its benefits for specific skin disorders, as well as general rejuvenation of the skin. 

Jelle Hoste


Jelle Hoste is a former judoka, winner of the national CrossFit championships in Belgium in 2020 and 2021, and CytoLED athlete. We go into his athletic history, how he got into CrossFit, and what his experience has been with full-body red light therapy so far.

Ray Peat


Biologist Ray Peat was one of the earliest people to extensively write about the benefits of red and near-infrared light. Decades back, before the large volumes of modern research on the subject, he was advocating for its application in a wide range of health conditions related to poor energy metabolism. 

Vladimir Heiskanen is well-known in the red light therapy research community for compiling an extensive database of red light therapy research. He has also published his own academic papers and blog articles on the subject. In this interview we ask him about the past, present and future of red light therapy. 

FreddyFairhair, formerly known for his pranks on YouTube, has turned to serious meditation practice over the last years. This steered his content in a new direction. We ask him about his transition in content, and his experience with using red light therapy to enhance his meditation practice.

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