Onion might burn your eyes however you'll be able to use the paste to treat white hair. All you'd have to be compelled to do rub it on your scalp and let it dry some. Your grey/white hair can flip black in few days. but use this remedy on a everyday to induce desired results.If you are doing it once in a very week, you may see no progress. make certain that you simply make love everyday! you'd have to be compelled to peel off the onion skin and grind the onions. Apply the paste on your scalp and let it's for a short time. Wash it off once half-hour just about. you'll be able to shampoo your hair too as a result of onion leaves associate degree unpleasant smell.