A simple body scrub is made up of two basic ingredients: sugar or salt along with a good oil. If you want added advantages, you can in addition, add in essential oils for a pleasing scent.
Let's talk about the salt.
You want to select a fine sea salt. Sea salt has a nice size and density for a body scrub and has gentle exfoliating properties. I don't recommend regular table salt as it is too abrasive and may cause tiny cuts on your skin. You should be able to find fine sea salt