If used as a quick wash it can act as an exfoliater, but make sure to moisturize right after washing with it. Salt dehydrates then skin very quickly. If used to much is will cause your skin to peel and flake.
Salt can help your skin if you use some salt and a little oil you can create your own salt scrub at home, which is great for exfoliation. Ingesting salt in small amounts adds with giving the body nutrients. Having a salt diet can lead to dehydration so drink water.
