Education Hub

Your Guide to Red Light Therapy

There’s plenty of information about red light therapy online, but understanding the terminology, device specifications and research can feel overwhelming.

At EternaGlow, we’re building an education hub to help you explore the topic in plain language, with links to original research so you can look beyond the headlines.

Explore the topic summaries below to find the information you’re looking for. To read the full guides, open the main menu and expand the Education Hub dropdown, then select your topic.

Red Light Therapy 101

Start with the basics: what red light therapy is, the difference between red and near-infrared light, and what the term photobiomodulation means.

Understanding Irradiance

Learn what irradiance means, how treatment distance and session time relate to light output, and what to look for when comparing device specifications.

Clinical Studies

Explore plain-language summaries of human clinical studies, including what researchers investigated, their findings and the limitations of each study. Each summary includes a link to the original research so you can explore it yourself.

Light Colours & Wavelengths Explained

Explore the differences between red, near-infrared, blue and other light colours. Learn what wavelength numbers mean, why some light is invisible, and how to look beyond colour settings when comparing devices and their claims.

Our Approach

We aim to make the science easier to understand while being clear about what the evidence can and cannot tell us. Research using a particular device or treatment protocol does not automatically establish the same results for every home-use product.

This hub will grow as we add more guides and research summaries.

The information provided is for general education and does not replace personalised advice from a qualified healthcare professional.