Red Light Therapy 101: Learn the Basics of Red & Near Infrared (NIR) Light
Red vs Near Infrared Light
Red light: Visible to the human eye, red light has wavelengths between 600–700 nanometers (nm) and is most effective on the skin's surface. Red light can improve skin health, collagen production, as well as help with hair growth.
Near-infrared Light: Invisible to the human eye, near-infrared light has wavelengths between 700–1200 nm and can penetrate deeper into the body, acting on the muscles, joints and bone.
How It Works
RLT primarily affects the mitochondria, the energy-producing centers of cells. When red and NIR light is absorbed, it enhances mitochondrial function, leading to increased adenosine triphosphate (ATP) production. ATP is the primary energy source for cellular activities, helping cells repair and regenerate faster.
Key Mechanisms:
- Increased ATP Production – More cellular energy enhances tissue repair and regeneration.
- Reduced Oxidative Stress – Red light helps balance reactive oxygen species (ROS), reducing inflammation.
- Enhanced Blood Circulation – Promotes oxygen and nutrient delivery to tissues.
- Collagen Production – Stimulates fibroblasts, improving skin elasticity and reducing wrinkles.
- Anti-Inflammatory Effects – Reduces pro-inflammatory cytokines, helping with muscle recovery and joint pain.
Potential Benefits:
- Skin Health: Improves wound healing, reduces acne, and promotes anti-aging effects.
- Muscle Recovery: Helps with soreness and speeds up muscle repair post-exercise.
- Pain Relief: Useful for arthritis, joint pain, and chronic conditions like fibromyalgia.
- Brain Health: Emerging research suggests benefits for cognitive function and neuroprotection.
- Sleep & Mood: May help regulate circadian rhythms and improve melatonin production.