Study Suggests Red Light Therapy Improves Cell Efficiency

The concept of using light for healing, known as photobiomodulation, has roots stretching back to ancient Egypt, but the modern application gained traction in the 1990s. NASA initially studied red light's effects on promoting plant growth in space and subsequently found it could accelerate wound healing in astronauts. Red and near-infrared light works at a cellular level by penetrating the skin and being absorbed by mitochondria, the "powerhouses" of our cells. This light absorption stimulates an enzyme called cytochrome c oxidase, which helps the mitochondria produce more adenosine triphosphate (ATP), the body's primary energy currency. With more ATP, cells have more energy to function efficiently, repair damage, and reduce inflammation. This enhanced cellular energy is the underlying mechanism for its potential benefits, which researchers are exploring for everything from skin rejuvenation to muscle recovery. At-home devices like the FlexBeam aim to make this technology more accessible, as consistent use is often key to seeing results. While professional-grade equipment in a doctor's office is typically more powerful, at-home wearables offer the convenience needed for daily routines. The U.S. Food and Drug Administration (FDA) has a specific classification for many red light therapy devices. Because they are considered low-risk, they often receive "FDA clearance" rather than "FDA approval," a more rigorous process reserved for high-risk devices like pacemakers. This clearance indicates the device is substantially equivalent to another legally marketed device. Beyond cellular efficiency, red light therapy has been studied for a variety of applications. Research has shown some promise for increasing collagen production for better skin texture, reducing pain and inflammation, improving circulation, and aiding in muscle repair after exercise.