Is Red Light Therapy Safe?

Safety is understandably one of the first things people consider when looking at red light therapy.

Photobiomodulation uses relatively low levels of red or near-infrared light and is generally described as non-invasive treatment. An international expert consensus published in 2025 concluded that photobiomodulation is a safe treatment modality for adults and found no evidence that red-light PBM causes DNA damage.

however, "generally safe" doesn't mean suitable for absolutely everyone.

The FDA notes that light-based procedures can pose risks to the eyes and identifies situation where photobiomodulation may not be appropriate, including certain photosensitivity disorders, photosensitising medications, active implants and some cancer-related circumstances.

This is why following your individual device instructions is important.

You should also avoid assuming that every red light therapy product is identical. Wavelength, power, distance, treatment duration and design can vary considerably between devices.

Glowrite's product range includes targeted LED face masks as well as larger panels, a mat and a belt, each designed for different applications.

If you experience unexpected discomfort, irritation or other adverse effects, stop using the device and seek appropriate professional advice.

Red light therapy is designed to be a comfortable, non-invasive addition to a wellness or skincare routine.

The best approach is simple: use the right device, follow its instructions, protect your eyes where recommended and understand whether there are any personal circumstances that mean light therapy isn't appropriate for you.