Yeast — our grandfathers still resorted to such treatment, so that the skin always remains clean, it is necessary twice (at least) per day, eat a very small amount of yeast. In addition, several times a week, you can make a special mask — 20g of yeast, mix with milk (approximate consistency — thick sour cream), after which the whole mixture is applied to the face, and remains there until it dries completely. As soon as the mask dries, it must be quickly removed from the skin, to remove, use ordinary hot water.