A bath salt is a common addition to a luxurious bath. It is a natural product that has many beneficial properties, and is safe to use in the bathroom. You can purchase bath salts at stores and online, and make them yourself to save money. It’s easy to make your own at home. The first step is to choose a base salt. For example, you can choose Epsom salt or sea water, or a plain salt for the tub. Sodium chloride is the main ingredient of bath salt. You can also use plain salts for your tub.