Understand you hair growth Lasers are combating excess, unwanted hair and effectively removing it much faster, more reliably and more comfortably than other standard methods like electrolysis, shaving and tweezing. They have proven to be a giant step forward in hair removal technology. Excessive hair growth is the result of heredity, hormonal factors, and some medications. Commonly treated areas are the face, back, neck, legs, bikini line, chest and underarms. Any skin area can be treated except eyelids. For optimal results Laser Treatment and Medical Spa suggests an initial series of four treatments four–six weeks apart. Desire Laser & Medical Spa™ treatment utilizes a laser beam to target the pigment located in hair follicles. The laser pulses for only a fraction of a second to vaporize the pigment, thus destroying or significantly impeding the hair's ability to re-grow, but not long enough to affect the surrounding skin. The laser offers a cooling device that automatically cools on contact to protect the skin while directing the laser energy to the hair follicle. The laser has a specific wavelength, a “set pulse duration” (pulse width), and a carefully defined beam diameter (called the spot size).