Low-Level Laser Therapy (LLLT)

The first laser was built in 1960 at Hughes Research Laboratories in Malibu, California. The term “laser” is actually an acronym for Light Amplification by Stimulated Emission of Radiation.

While light from an ordinary white light bulb, produces multiple wavelengths, lasers produce light in which all of the light waves have similar wavelengths. Laser light is therefore monochromatic (has one pure color). For example, the below light wavelength ranges (in nanometers) produce the specific colors of the visible light spectrum; the visible light spectrum is between ~380 nm (violet) and ~750 nm (red).

Low-Level Laser Therapy

In medicine, high-energy, or “hot lasers,” are used to cut or eliminate/vaporize tissue. In contrast, Low-Level Laser Therapy (LLLT) or “cool lasers,” are used to promote healing by stimulating and enhancing cellular function.

Studies have shown LLLT to be variably effective for improving: pain, arthritis, tendon and joint disorders, neck and back disorders, wound healing and hair loss.

Hair follicles, optimally absorb light that is in the red portion of the visible light spectrum; based on various studies, 678 nanometers is believed to be the optimal wavelength for hair follicle rejuvenation. Theoretically, 678 nanometer LLLT improves hair growth by stimulating the hair follicle’s cellular metabolism.

In January of 2007 the HairMax LaserComb® was first granted FDA Clearance as a medical laser device for the treatment of hair loss. Since that time a number of LLLT devices have been developed. Most of these devices are designed to deliver 678 nanometer light to areas of hair loss.

Several modern LLLT devices, for hair loss, involve wearing a cap of helmet-like device for around 30 minutes every other day. Some of the newer, more powerful, systems require shorter or less frequent treatments.

Please consult with your physician before considering any of the drugs or treatments discussed on this website