Each hair has to be treated individually. Repeated visits are often necessary and the cost can run into hundreds and thousands of dollars. Much discomfort or pain can be associated with the process, depending on the individual. It is best carried out by a professional as there are dangers of skin damage if not done properly. Thermolase uses a laser to disable the hair follicle.
Beams of light can treat a number of hairs at the same time.
There are claims that the discomfort is less than electrolysis. It can be more expensive than electrolysis and repeated visits are often necessary. One point worthy of note, the risk of skin injury is higher on persons with darker skin. Surrounding tissue can be burned and a wider skin area affected. With proper professional consultations however, the risks can be discussed and minimized.