Red light therapy — also known as photobiomodulation or low-level laser therapy (LLLT) — uses specific wavelengths of red and near-infrared light to stimulate the body’s cellular processes. This innovative treatment penetrates the skin and targets the mitochondria, the powerhouses of our cells, boosting energy production and supporting the body’s natural healing process.

Red light occupies a specific part of the light spectrum, with wavelengths ranging from 630 to 660 nanometers (nm). To the naked eye, it appears as a warm, reddish glow. Near-infrared light (NIR) picks up right where red light leaves off, sitting around 800 to 850 nm. It’s invisible to the human eye, but it penetrates tissue even more deeply.

What makes these wavelengths so effective is that they’re absorbed by a specific protein found in your cells’ mitochondria: cytochrome c oxidase (CCO). This protein acts as a kind of photoreceptor — when it absorbs red or near-infrared light, it kickstarts the production of ATP, the energy molecule that powers nearly every cellular function in the body.

Unlike UV light, which can damage the skin, red light therapy is non-ionizing, making it a gentle, non-invasive option. The underlying principle is similar to photosynthesis in plants: light energy gets converted into a biologically usable form, just through a different mechanism.

Red light therapy panels rely on powerful LEDs calibrated to these precise therapeutic wavelengths, delivering light to the cells at exactly the frequencies known to trigger the greatest biological response.