These light wavelengths must be carefully set in the 660 nm range of infrared light for maximum healing affect. Treatment duration is also an important parameter.

The McLaren Method of Photonic Therapy provides guidance in the use of the low-level laser for properly stimulating cells to induce natural healing in a wide range of ailments... more...

Background Light-emitting diode (LED) therapy is an increasingly popular methodology for the treatment of sun damage. Combination use of light wavelengths reported to stimulate collagen synthesis and accelerate fibroblast–myofibroblast transformation may display a composite rejuvenative effect.
Objective To clinically assess reduction in sun damage signs following a 5-week course of LED therapy and to assess subject's perception of the treatment.
Methods Thirteen subjects with wrinkles or fine lines in the periorbital and nasolabial region and those presenting Glogau scale photodamage grade II–III received nine 20-min duration light treatments using the Omnilux™ LED system. The treatments combined wavelengths of 633 and 830 nm at fluences of 126 and 66 J/cm2, respectively. Sun-damage reduction was assessed at 6, 9, and 12 weeks by clinical photography and patient satisfaction scores.
Results The majority of subjects displayed "moderate" (50%) or "slight" (25%) response to treatment at investigator assessment. Treatment of the periorbital region was reported more effective than the nasolabial region. At 12-week follow-up, 91% of subjects reported improved skin tone, and 82% reported enhanced smoothness of skin in the treatment area.
Conclusion Good response to LED therapy has been shown in this modest sample. Larger trials are needed to assess optimum frequency of light treatments and overall treatment time.

Journal of Cosmetic Dermatology
Volume 6 Issue 3, Pages 189 - 194
Published Online: 24 Aug 2007

OBJECTIVE: The purpose of this study was to assess the effects of hyperbaric oxygen (HBO) and near-infrared light therapy on wound healing.
BACKGROUND DATA: Light-emitting diodes (LED), originally developed for NASA plant growth experiments in space show promise for delivering light deep into tissues of the body to promote wound healing and human tissue growth. In this paper, we review and present our new data of LED treatment on cells grown in culture, on ischemic and diabetic wounds in rat models, and on acute and chronic wounds in humans.
MATERIALS AND METHODS: In vitro and in vivo (animal and human) studies utilized a variety of LED wavelength, power intensity, and energy density parameters to begin to identify conditions for each biological tissue that are optimal for biostimulation. Results: LED produced in vitro increases of cell growth of 140-200% in mouse-derived fibroblasts, rat-derived osteoblasts, and rat-derived skeletal muscle cells, and increases in growth of 155-171% of normal human epithelial cells. Wound size decreased up to 36% in conjunction with HBO in ischemic rat models. LED produced improvement of greater than 40% in musculoskeletal training injuries in Navy SEAL team members, and decreased wound healing time in crew members aboard a U.S. Naval submarine. LED produced a 47% reduction in pain of children suffering from oral mucositis.
CONCLUSION: We believe that the use of NASA LED for light therapy alone, and in conjunction with hyperbaric oxygen, will greatly enhance the natural wound healing process, and more quickly return the patient to a preinjury/illness level of activity. This work is supported and managed through the NASA Marshall Space Flight Center-SBIR Program.

Department of Neurology, Medical College of Wisconsin, Milwaukee

Sat June 04, 2005- "... Over the past seven years, the neuroscientist has been studying the healing powers of low-level lasers. She has found that in rats, laser therapy can repair severed spinal cords, allowing once-injured animals to walk again.

“It’s remarkable,” says Georgetown University researcher Kimberly Byrnes, who collaborated with Anders on the research. “We got significant growth across the injury.”

The research was conducted in Bethesda. Md., at Ander’s lab at the Uniformed Services University, the U.S. military’s medical school.

Anders and Byrnes aren’t the only ones coming up with promising laser results. Small groups of researchers scattered across the globe are testing the lasers on a range of ailments, including heart attacks, nerve injuries and internal wounds..."

"...“This has the potential to change medicine,” said Dr. Harry Whelan, a neurology professor at the Medical College of Wisconsin who experiments with lasers in treating serious eye injuries.

Whelan sees the lasers as a potential “paradigm shift.” He says that almost all medical treatments rely on drugs, which have side effects, or surgery, which is invasive. He argues that laser therapy, by contrast, works through a completely different mechanism: It boosts the body’s ability to repair itself.

Low-level laser therapy has been around since the 1960s, when it was discovered by a Hungarian doctor. It has a variety of names, including phototherapy and cold laser (to differentiate it from the “hot” lasers used in surgery).

Since then, doctors and physical therapists, most of them outside the United States, have employed it, mostly to speed wound healing. But over the past decade, other scientists have found that lasers may have far wider medical potential..."

Medical Technology