Laser hair removal is achieved by targeting the melanin in the hair follicles and the hair contrast – fair skin – dark hair. So, if there is no melanin, then it cannot find a target to destroy. It is effective on all skin types, but not on all hair types. Lighter-skinned individuals with gray or blonde hair will not achieve great results as there is no color contrast in the skin type. The melanin content in gray color hair is very less, and thus it cannot target those follicles. It works best on Light Skin- Dark Hair and Dark Skin – Dark Hair.