Key Parameters for Effective Red Light Therapy

Before diving into specific protocols, it’s important to understand the main parameters that influence RLT outcomes:

1. Wavelength:

   • Red light (620–660 nm): Effective for skin health, wound healing, and superficial treatments.

   • Near-infrared light (800–850 nm): Penetrates deeper into tissues, ideal for muscle recovery, joint pain, and systemic benefits.

2. Light Intensity (Irradiance):
   Measured in milliwatts per square centimeter (mW/cm²). Research suggests that intensities between 20–200 mW/cm² are most effective, depending on the treatment area.

3. Dose (Energy Density):
   Measured in joules per square centimeter (J/cm²). Effective doses typically range from 3–50 J/cm², depending on the condition and tissue depth.

4. Treatment Duration:
   Sessions usually last 5–20 minutes, depending on the device and treatment area.

5. Treatment Frequency:
   Research supports 3–5 sessions per week for optimal results, with maintenance treatments as needed.