I have an at-home laser hair removal gun. It works best on dark hair and very pale skin because it uses the absorption of UV light to heat and kill the hair. It has a safety feature that makes you validate that "my skin is pale enough to use this" before it will turn on because it will burn anything dark. Hair, skin, whatever.
It won't work on blond or white hair, and there's no real workaround to that. Electrolysis is an option for light colored hair, but I think that's more invasive. Not an option for me, so I haven't looked into it.