By Dr. Mercola
Laser therapy is still a fairly unknown 21st century treatment modality that can have profound benefits for pain management and tissue healing. Dr. Phil Harrington was a high school physics teacher and was trained at Palmer College of Chiropractic as a chiropractic physician.
He ran a chiropractic office in a small town in Iowa for 10 years prior to becoming the first employee of K-Laser USA1 —a company that manufactures high-grade medical laser equipment.
There are a number of companies that manufacture lasers for tissue healing but K-Laser is currently the leading manufacturer of these types of lasers.
What You Need to Know About Lasers
Lasers are classified according to their power output:
Class 3a—maximum of 5 milliwatts of power (standard laser pointer)
Class 3b—maximum of 500 milliwatts/0.5 watts
Class 4—anything over 500 milliwatts/0.5 watts
The most significant issue with the clinical use of lasers is the depth of penetration. Some practitioners make the mistake of using low-power Class 3 lasers, which basically amounts to a standard laser pointer.
Most class 3a lasers only use a red wavelength – 635 nanometers in the visible red. When you look at the depth of penetration with laser, red laser light only penetrates about one to two millimeters (far less than 1/8 inch) into the human body.
Granted, red laser is highly useful for treating superficial wounds, cuts, abrasions, and perhaps even for the treatment of vitiligo, but they will not penetrate far enough for deep seated pain reduction. However, infrared lasers (around 800 nanometers) penetrate far deeper and able to go several centimeters, into your body which will reach most tissue injuries.
Power is also another crucial factor when it comes to laser therapy. Power is measured in watts, and you can think of it as the brightness of the light. A higher-powered laser is a brighter light, and it can produce more energy