"Bath fizzes are a lovely way to relax! They do add oils to your bath water so please take care when getting out of your tub, as it will make your tub a little slippery. Oils and any coloring can normally be rinsed out of the tub with water and a cloth. In rare occasions, the color may react with the tub and you will need to use a bathroom cleaner to remove it. However the coloring is food coloring so it is not permanent and will fade. Net Weight 4.5 oz "