It's 'supposed' to whiten your teeth and pull the toxins out of your body.
Long sheets of hail fell from the clouds, which seemed of very insignificant volume, but they could not whiten the ground.
He said that the teeth should be cleaned, but that it was girlish to whiten them with powder.
Melancholy was stronger than Reason, and three or four soft locks were beginning to whiten about his temples.
I was soon despatched; and my bones left to whiten on the sand.
By the time she was again ready for sea, the January snows had begun to whiten the fields about St Malo.
By this time the snow was thicker, and the park beginning to whiten.
Oatmeal and warm water used every night and morning as a wash will whiten and soften the roughest and darkest hands.
We were ashamed of our red eyes, and hung about for half an hour to whiten them.
Her eyelids fell, she began to whiten and to droop, and her hands twitched and trembled.