What are the key types of therapeutic light?
Written by
David Nelson
Reviewed by
Prof. Graham Pierce, Ph.D.The main types of therapeutic light work at particular wavelengths to affect different biological processes. Red light stimulates collagen production, and blue light addresses acne-causing bacteria. Near-infrared light penetrates tissue more deeply for effective repair. Amber light addresses pigmentation problems. Each wavelength has a different healing effect.
Red Light (630-660nm)
- Primary Benefit: Collagen synthesis and wound repair
- Penetration Depth: Up to 5mm into skin layers
- Protocol: Daily 10-15 minute sessions
- Ideal For: Anti-aging and post-surgery recovery
Blue Light (415nm)
- Primary Benefit: Acne bacteria destruction
- Penetration Depth: Surface level only
- Protocol: Alternate day 8-10 minute sessions
- Ideal For: Oily and acne-prone skin types
Near-Infrared (810-850nm)
- Primary Benefit: Deep tissue inflammation reduction
- Penetration Depth: Up to 40mm into joints
- Protocol: 15 minutes 3x weekly
- Ideal For: Arthritis and muscle recovery
Amber light at 590nm targets hyperpigmentation only. Increasing cellular turnover reduces the appearance of dark spots on the skin. This wavelength works great with red light for overall skin rejuvenation. I recommend very short daily doses for maximum pigmentation correction.
Designated devices that provide a range of wavelengths can offer a comprehensive treatment spectrum. These may treat multiple conditions at once. For example, red and blue can treat both signs of aging and acne. I also recommend multi-wavelength panels for home use.
Ensuring safety in all light therapies is crucial. Near-infrared light therapies must be strictly regulated in terms of timing when used for deep tissue purposes. Blue light intensity must remain under FDA standards. Additionally, it is essential to use eye protection during light therapy treatments. I implement the proper techniques with my clients to safely maximize the benefits they achieve.
Choosing the right light for your circumstances is a crucial consideration. Anti-aging issues respond best to red wavelengths. Blue light therapy protocols can help with active acne. My recommendation would be to seek professional advice to match the devices you are using with your personal health goals. I help my clients in selecting the most suitable technologies.
Read the full article: 8 Light Therapy Benefits Explained Simply
