The main differences between red light and near infrared light (نير) are their wavelength, penetration depth, and bio-effects. Below is a detailed comparison and guide on how to choose the right wavelength for your needs:
- Wavelength and penetration depth
Parameters Red light Near infrared light (نير)
Wavelength range 600–700 nm (على سبيل المثال. 660 نانومتر) 700–1100 nm (على سبيل المثال. 850 نانومتر)
Penetration depth 1–5 mm (skin layer) 5–10 cm (العضلات, bones, المفاصل)
Primary targets Skin, superficial tissues Deep tissues, organs, مخ
Importance:
Red light is very beneficial for skin health (إنتاج الكولاجين, التئام الجروح).
NIR light reaches muscles, الأوتار, والمفاصل, providing better pain relief and improved recovery.
- Bio-effects
الضوء الأحمر (على سبيل المثال. 660نانومتر)
Boosts collagen and elastin production → anti-aging, reduces acne/scars.
Reduce surface inflammation (على سبيل المثال. حروق الشمس, الأكزيما).
Stimulate hair follicles (for hair growth devices).
Near infrared light (على سبيل المثال. 850نانومتر)
Accelerate muscle repair → post-exercise recovery, relieve delayed onset muscle soreness (DOMS).
Reduce deep inflammation (على سبيل المثال. التهاب المفاصل, tendinitis).
Enhance brain function (emerging research in neuroprotection).
- How to choose the right wavelength?
For skin and beauty
Best: 660نانومتر الضوء الأحمر (على سبيل المثال. for wrinkles, حَبُّ الشّبَاب, العُدّ الوردي).
Device:
لوحة العلاج بالضوء الأحمر الأمريكية M1
Pain and muscle recovery
Best: 850nm near infrared (or 660nm + 850nm dual wavelength).
Device:
Merican Red Light Therapy Panel M2
Joints and deep tissue
Best: 810nm or 850nm near infrared (can penetrate bones/tendons).
Example: Merican Red Light Therapy Bed M4N
Overall Health
Best: أحمر + NIR combination (على سبيل المثال. 660نانومتر + 850نانومتر).
Example: Merican Red Light Therapy Bed M-MB
- Key Considerations
Dual wavelength devices (على سبيل المثال. 660نانومتر + 850نانومتر) provide the broadest benefits.
كثافة الطاقة (≥50–100 mW/cm²) is more important than wavelength alone.
Avoid cheap devices with unproven wavelengths (ineffective or unsafe).
- نصائح السلامة
عيون: NIR light penetrates eyelids → wear goggles for prolonged exposure.
موانع: Avoid if pregnant or with active cancer (consult your doctor).
Final Tip: If unsure, choose a red/NIR combination device (على سبيل المثال. أمريكي). Start with 10–15 minutes, 3–5 times per week and adjust based on results.
