What Is Red Light Therapy?

Red light therapy (RLT) is a non-invasive treatment that uses low-level red or near-infrared light to support healing and wellness. Unlike UV rays, which can damage skin, red light penetrates safely into your cells and stimulates natural repair processes.

You may also hear it called low-level laser therapy (LLLT) or photobiomodulation (PBM), but all describe the same concept: using light to encourage your body to function more efficiently.

How Does Red Light Therapy Work?

At the core of red light therapy are your cells’ mitochondria, often called the “powerhouses” of the cell. These structures produce ATP (adenosine triphosphate), the energy your body needs to heal, repair, and thrive.

When exposed to red and near-infrared light, mitochondria produce more ATP. This boost in energy allows your cells to:

• Repair themselves faster
• Reduce inflammation
• Improve circulation
• Support skin and muscle health

Think of it as giving your body a natural energy upgrade at the cellular level.

Benefits of Red Light Therapy

1. Skin Health and Anti-Aging

Red light therapy can increase collagen production, helping reduce wrinkles, fine lines, and age spots. It’s also being studied for acne, scars, and wound healing.

2. Pain Relief and Reduced Inflammation

By improving circulation and calming inflammation, RLT can ease joint pain, arthritis discomfort, and sore muscles.

3. Faster Muscle Recovery and Performance

Athletes often use red light therapy to shorten recovery time after intense workouts. Stronger recovery means less downtime and better performance.

4. Better Sleep and Mood Support

Research suggests that red light may help regulate sleep cycles and improve mood, making it helpful for insomnia or seasonal depression.

5. Hair Growth Support

Red light therapy is also showing promise in stimulating hair follicles, supporting regrowth for certain types of hair loss.

Is Red Light Therapy Safe?

Yes, red light therapy is generally considered safe when used as directed. Unlike tanning beds, it doesn’t emit harmful UV rays.

Most at-home devices recommend 10–20 minutes per session, a few times per week. Overuse may cause temporary redness or irritation, but side effects are rare.

Should You Try Red Light Therapy?

While it isn’t a miracle cure, red light therapy is backed by growing scientific evidence and offers benefits for skin, pain relief, recovery, and overall wellness. Because it’s non-invasive and low-risk, it’s worth considering—especially if you’re looking for natural ways to support your health.

For medical conditions, consult your doctor before starting red light therapy at home or in a clinic.