The main differences between red light and near infrared light (NIR) är deras våglängd, penetrationsdjup, och bioeffekter. 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 (NIR)
Wavelength range 600–700 nm (till exempel. 660 nm) 700–1100 nm (till exempel. 850 nm)
Penetration depth 1–5 mm (skin layer) 5–10 cm (muskler, ben, leder)
Primary targets Skin, superficial tissues Deep tissues, organs, hjärna
Importance:
Rött ljus är mycket fördelaktigt för hudens hälsa (kollagenproduktion, sårläkning).
NIR-ljus når musklerna, senor, och leder, providing better pain relief and improved recovery.
- Bio-effects
Rött ljus (till exempel. 660nm)
Boosts collagen and elastin production → anti-aging, reduces acne/scars.
Reduce surface inflammation (till exempel. solbränna, eksem).
Stimulera hårsäckarna (for hair growth devices).
Nära infrarött ljus (till exempel. 850nm)
Accelerate muscle repair → post-exercise recovery, relieve delayed onset muscle soreness (DOMS).
Reduce deep inflammation (till exempel. artrit, tendinitis).
Enhance brain function (emerging research in neuroprotection).
- How to choose the right wavelength?
For skin and beauty
Best: 660nm rött ljus (till exempel. for wrinkles, acne, rosacea).
Device:
Merican Red Light Therapy Panel 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: Röd + NIR combination (till exempel. 660nm + 850nm).
Example: Merican Red Light Therapy Bed M-MB
- Viktiga överväganden
Dual wavelength devices (till exempel. 660nm + 850nm) provide the broadest benefits.
Power density (≥50–100 mW/cm²) is more important than wavelength alone.
Avoid cheap devices with unproven wavelengths (ineffective or unsafe).
- Säkerhetstips
Ögon: NIR light penetrates eyelids → wear goggles for prolonged exposure.
Contraindications: Avoid if pregnant or with active cancer (consult your doctor).
Final Tip: If unsure, choose a red/NIR combination device (till exempel. Merican). Start with 10–15 minutes, 3–5 times per week and adjust based on results.
