The Science Behind Red Light Therapy: How It Works

Red light therapy (RLT) is a treatment that uses low-wavelength red light to reportedly help with skin rejuvenation, wound healing, and tissue repair. But how does it actually work?

The Science

Red light therapy works by delivering red and near-infrared light to the skin and cells. This light penetrates the skin and is absorbed by the mitochondria, the powerhouse of the cell. This absorption stimulates the production of adenosine triphosphate (ATP), which is the energy currency of cells.

Benefits

• Skin Health: Stimulates collagen production and reduces wrinkles
• Pain Relief: Reduces inflammation and muscle soreness
• Hair Growth: Promotes blood circulation to hair follicles
• Wound Healing: Accelerates tissue repair

Wavelengths

The most effective wavelengths for red light therapy are:

• 630-660nm (Red Light): Best for skin surface issues
• 810-850nm (Near-Infrared): Deep tissue penetration