By contrast, physical scrubs do a more manual form of labor, sloughing off dead skin with things like salts, sugars, or other particles derived from sources like plants, notes Dr. Libby.

Why Does the Dead Sea Let You Float? Did you know the Dead Sea is incredibly salty, with 342 grams of salt per kilogram? That’s about 34.2% salt, making it ten times saltier than regular ocean water.