Laser hair removal session involves using highly concentrated light to stop the growth of hair in the hair follicles. The laser’s light is absorbed by your hair pigment (melanin); that laser energy is then converted into heat, arresting future hair growth from your hair follicle.

It works for coarse hair or darker hair but not so much on blond or white hair. Laser technology works on the melanin present in the hair, so people with hair much darker than their skin see the best results.