Foaming Bath Salts are a combination of soothing Epsom and Pink Himalayan Salts along with the fizz and bubble of a Bath Bomb. ...with the uplifting and added moisturizing goat milk! Our Foaming Bath Salts come in a 4 ounce reusable plastic test tube with a metal screw top lid. Simply sprinkle in the desired amount into warm running bath water; typically good for up to 2-4 baths.