4.3+Debby+what is a bath bomb made of

Bath bombs are usually made from three key ingredients: baking soda, citric acid and cornstarch, said Frankie Wood-Black, an instructor in chemistry at Northern Oklahoma College and an experienced bath-bomb maker. Often, bath bombs also include dyes and perfumes, and sometimes they have epsom salt.

When pressed in your hand, make sure the mixture clumps together. It shouldn't be too wet and should be able to keep its shape. Mix quickly as the water will make your blend fizz.