Is the Ayurvedic treatment of thanaka and Kasuma oil a safe procedure for permanent hair removal?

Used in Burma. It is claimed to remove unwanted hair permanently and is used by women and some men in Burma I can not find any study done for it's safety or effectiveness .But they claim there are no side effect Sorry we do not have too much scientific information about this. But it sounds too good to be true that it removes unwanted hai permanently and no side effects.