Red Light Therapy 101: What It Is, How It’s Used, and What to Know

Rebecca Preslar
Jan 12
2 min read

Red light therapy has become increasingly visible in wellness spaces—from physical therapy clinics and spas to at-home devices designed for everyday use. While it’s often shared through personal stories, it can also be helpful to understand red light therapy from a broader, educational perspective—especially for those living with chronic or autoimmune conditions who may need to approach new modalities with extra care.

At its core, red light therapy uses specific wavelengths of red and near-infrared light that are designed to penetrate the skin and underlying tissues. These wavelengths are commonly associated with supporting cellular processes, which is why red light therapy is often associated with recovery, circulation, skin health, and nervous system support.

For individuals with autoimmune or inflammatory conditions, one of the reasons red light therapy is frequently explored is its non-invasive and low-exertion nature. Sessions typically involve resting quietly while the body is exposed to light—without physical strain, stimulation, or demand. For many, the experience itself feels calming and supportive, regardless of any specific outcome.

There are also many different types of red light therapy, which can make the landscape confusing for someone new to it.

Some people use at-home red light panels or pods, which allow for shorter, more consistent sessions in a familiar environment. Others prefer studio-based or clinical infrared setups, which may include larger panels or full-body systems used under professional supervision. There are also targeted devices, such as flexible pads for specific areas of the body, as well as face-focused tools commonly incorporated into skincare routines.

Because these options vary in wavelength, intensity, exposure time, and purpose, experiences can differ widely. What feels supportive for one person may feel overstimulating or ineffective for another. This variability is especially relevant for those with autoimmune conditions, where sensitivity, flares, and nervous system response can change from day to day.

Rather than being viewed as a cure or standalone solution, red light therapy is often approached as a supportive practice—one that may complement rest, stress management, gentle movement, or other wellness habits. Learning about the different types of devices available and starting with realistic expectations can help individuals decide whether it feels appropriate for their own bodies and circumstances.

As with any wellness modality, awareness and personalization matter. Red light therapy offers a range of options, and understanding those differences can empower more informed, mindful choices—particularly for those navigating complex or sensitive health landscapes.