Description

Laser light generated by low-powered (cold) lasers has been widely used for over thirty years for medical purposes. The physics, chemistry and biology of laser light interaction with human tissue are well documented. There have been no reported side effects from LLLT treatments, which are painless and non-toxic. Low level laser light, when applied to the scalp, is one of the newest therapies to treat hair loss. 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 (colour) 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 nanometres and low power (wattage).It’s use in treating hair loss and other medical conditions is defined as low-level laser therapy (LLLT). LLLT is sometimes included under a broader definition of phototherapy called “low-level light therapy” where the light-emitting device may be a laser or a light-emitting diode (LED).