The length of a laser hair session can vary depending on the size of the area being treated. For example, treating a small area like the upper lip may only take a few minutes, while treating a larger area like the back or legs may take up to an hour or more. During the session, the laser technician will use a hand-held laser device to deliver pulses of laser energy to the targeted hair follicles. The duration of each pulse is typically very short, usually just a fraction of a second, but the technician may need to repeat the process multiple times to cover the entire treatment area. It’s important to note that laser hair typically requires multiple sessions, usually spaced several weeks apart, in order to achieve the best results. The exact number of sessions needed will depend on factors such as the thickness and density of the hair, the color of the hair and skin, and the individual’s response to the treatment.