How Lasers Work

Laser Hair Therapy Studies

More Studies on Laser Hair Loss Therapy*

2003, A LLLT hand-held device (hair loss laser) was recognized as a medical device by Heath Canada A double blind study accepted by the FDA showed 135 new hairs per inch with Laser Treatment that compares to the best previous FDA study result of Propecia at 55 new hair per inch Laser 135 new vs. Propecia 55 New Massachusetts General Hospital (Harvard University) demonstrated development of healthy hair follicles through Laser Bio-Stimulation.

Dr. Unger's Studies 94.4% increase in Hair Physician study proved increase in hair count after 3 months using Laser Bio-Stimulation.  93% increase in hair among the respondents using Laser in Intl Journal of Cosmetic Surgery and Aesthetic Dermatology study. 

40% increase in hair growth after using Laser Bio-Stimulation according to a US Study.

86% of patients regrowing hair, while another 11 per cent stopped losing hair, Canadian Study

100% retention of hairs and a 20% improvement in thickness and density of hair follicles using Laser Bio-Stimulation according to a European Study.

American study proved 100% retention of hairs and near 38% hair regrowth after using Laser Bio-Stimulation.

                              Before and After Laser Treatment Program

             Before                    1 Month                      3 Months                    6 Months          

How will long will it take to see results?

Everyone is different! That is why each client’s individual needs are determined during our medical consultation. Most people see Hair loss slow or Stop in the first few months and then some hair regrowth in the first 2-4-6 months. However, some people require between 6 months to 1 year to see results. Best result are generally seen in the first 12 to 24 months, therefore, we recommend 1 year programs for most people. If you are not seeing the results you want at 3 or 6 months, we can easily adjust your program to include other treatments like higher strength Minoxidil and/or added laser.

Laser Hair Therapy Studies

Latest LLLT Study released in 2009 at ISHRS (International Society for Hair Restoration Surgeons) showed:

-100% of the subjects saw an increase in hair growth

- 97% saw an increase in hair count > 20%

- 77% saw an increase in hair count > 51%

PROVEN 2007 FDA cleared device - Laser proven to regrow hairin a Multi-Center Double Blind, Sham-Device Controlled Clinical Study - 93% of People got an average of 19 new thick hair per centimeter in 6 months (most clinics find best results in 12 - 24 months)

A new study published in the International Journal of Cosmetic Surgery and Aesthetic Dermatology showed a 93% increase in hair among the respondents using Laser in the study!

SAFE - LLLT has been used clinically for numerous ailments in Europe for over 30 years and has been the subject of over 3,500 scientific papers, published worldwide.  LLLT is approved forSafety by the FDA.  There are no reported side effects to the therapy which is painless, non-toxic and complements many traditional therapies.**

The Cold Laser: A Newer Medical Treatment for Pattern Hair Loss

Laser light generated by low-powered (cold) lasers has recently come into use as a non-surgical hair restoration treatment for pattern hair loss. Hand-held "comb", "brush" or "cap" laser devices are marketed for use at home. Larger "hood" or "cap" devices are used in hair restoration clinics.

The use of lasers for medical purposes is not new. Lasers have been in use for medical purposes for many years and the physics, chemistry and biology of laser light interaction with human tissue are well documented. Medical uses range from surgery using high-powered lasers to stimulation of tissue repair. Use of laser light for treatment of hereditary hair loss is a newer application of laser technology.

The "cold" lasers used for treatment of androgenetic alopecia deliver what is called low-level laser therapy (LLLT). The LLLT lasers are called "cold" because their light is absorbed by target tissue but does not heat the target tissue as occurs with lasers used to cut and remodel tissue.

The Mechanics of a Laser

The laser is a device for producing and emitting light of a very specific wavelength and power (wattage). The specificity (coherence) of wavelength is what makes lasers unique. The wavelength (color) of laser light and the wattage are selected for the specific purpose to be accomplished. Thus, lasers that emit narrow wavelengths of green, red, infrared, etc., are selected and paired with appropriate wattage for specific purposes. The laser light used for treatment of pattern hair loss is visible red light with wavelength of 630-670 nanometers and low power (wattage).

LLLT in Hair Restoration: How It Works

The interaction between laser light and living tissue is defined as photobiology. Photobiology can be subdivided into laser-tissue reactions defined as photochemistry and photophysics—that is, stimulation of chemical or physical reactions by laser light. The use of light of any wavelength for medical purposes is defined as phototherapy.

Why is visible red light in the narrow spectrum of 630-670 nanometers and low power crucial for treatment of pattern hair loss? The answer is: because red light in that narrow spectrum at low power is absorbed by hair follicle molecules critical to stimulating hair growth or regrowth. Absorption of light by the hair follicle molecules is essential in order for biological reaction to be stimulated in the molecules. If light is not absorbed, no photobiological reaction will occur.

An accidental observation in laboratory mice in 1967 led to discovery that visible red laser light stimulates hair growth. A Hungarian scientist investigating the effect of laser light in treating skin cancer noticed that hair grew back more quickly on the skin of shaved mice treated with visible red laser light.

Research has shown that visible red laser light in the 630-670 nanometer spectrum is absorbed by an intracellular enzyme (cytochrome c). Photobiological reactions stimulated in cytochrome c sends signals throughout cells of the hair follicle, stimulating enhanced gene activity, decreased apoptosis (gene-regulated cell death), and other changes that enhance cell activity and survival.

LLLT does not stimulate hair regrowth in every person. If intracellular molecules are unable to absorb laser light, or unable to adequately respond to absorbed light, no stimulation of hair regrowth will occur.

Experience has shown that stimulation of hair regrowth by LLLT is more likely to occur when hair loss is minimal to moderate, less likely when hair loss is major and/or long standing.

Physician hair restoration specialists who use LLLT in a treatment plan for a patient’s pattern hair loss have often noted that LLLT is more effective when used in conjunction with other medical therapies such as minoxidil or finasteride. Click on Hair Restoration Medications: A Summary at a Glance. Some physician hair restoration specialists have reported that LLLT may enhance hair growth and reduce inflammation after hair transplantation.

LLLT is not a "one time only" treatment for pattern hair loss. As with other medical therapies, treatment must be repeated at intervals to maintain hair regrowth results. Hair transplantation is the only permanent treatment for pattern hair loss. Click on Surgical Hair Transplantation: Hair Transplant Surgery.

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