How Safe Laser Hair Removal Works

The word laser is an acronym for: light amplification by stimulated emission of radiation. It’s a device that creates and amplifies a narrow, intense beam of coherent light: light that is of one frequency. Lasers are commonly used in medical science and more recently in cosmetic procedures like hair removal. In a laser, the atoms or molecules of a crystal, such as ruby or garnet, are excited in what is called the laser cavity so that more of them are at higher energy levels than are at lower energy levels. Reflective surfaces at both ends of the cavity permit energy to reflect back and forth, building up the power in each passage. With laser hair removal the laser penetrates the …