We've wrapped Nellie's Laundry Soda in stuff that dissolves in hot or cold water - genius isn't it? Simply drop these pre-measured biodegradable Laundry Nuggets into the wash, and your work is done. Great if you want to use the perfect amount of detergent, without using too much.***Ingredients: Sodium Silicate, Coconut oil based surfactants, MonoSol® Film***