These Peppermint Herb Bath Bombs are easy to make and are the bomb dot com. (Sorry I couldn't help myself) it just kinda typed itself right on out there) Learning how to make bath bombs helps you control your ingredient list. Peppermint Herb Bath Bombs Supplies needed:1 cup of citric acid crystals1 ¼ cup of corn starch2 cups of baking soda½ cup of basic Epsom saltsSpray bottle with ...