Cornstarch is used in bath bomb recipes for a few different reasons. First, it helps to bind the ingredients together, making it easier to shape the bath bomb. Second, it helps the bath bomb to dissolve more slowly in water, which can help to provide a longer-lasting scent and color. Finally, cornstarch can help to give bath bombs a softer texture, making them easier to break apart when using them.

Do I need cornstarch for bath bombs?

It is not necessary to use cornstarch when making bath bombs, although it can be used to help absorb excess moisture. Cornstarch can also be used to thicken the mixture, giving the bomb a firmer texture and helping it to hold its shape when it is removed from the mold. However, it is not essential and many recipes do not include it.

Does cornstarch harden bath bombs?

Yes, cornstarch can be used to harden bath bombs. By adding cornstarch to the dry ingredients (such as baking soda and citric acid) of a bath bomb mixture, it will help to bind the mixture together and create a firmer, more solid bath bomb. It is recommended to use one tablespoon of cornstarch per cup of dry ingredients.