Modern laboratories now know why milk worked such wonders for her skin: the lactic acid in milk is an alpha hydroxy acid, a natural material that dissolves the glue that holds dead skin cells together. Milk can cleanse the skin down to its deepest layers.
This secret beauty formula couldn’t be simpler. Add 2 to 4 cups of fresh milk or buttermilk to the bathwater as the tub is filling. Soak for a good 20 minutes. Gently rub your skin with a washcloth or loofa to slough off the dead skin. Rinse your body thoroughly after soaking.
Caution: Very hot baths are not good for those with high blood pressure, and they can be draining for anyone. Skip this bath if you are allergic to milk or are lactose intolerant.