Bath bombs are hard-packed mixtures of dry ingredients that effervesce when wet. They are used to add essential oils, scent, bubbles and color to bathwater. They are a mixture of salts, colorants, oils and solid items such as flower petals or glitter. When added to a bath, the sodium bicarbonate reacts with citric acid to release carbon dioxide gas (like Alka-Seltzer). As it is breaking down, it releases colorants, fragrances, salts and oils.
Potential problems
1. Solid particles in bath bombs could include natural things like lavender buds and flower petals or synthetic materials such as glitter and confetti. None of these items will dissolve.
