Is it normal to sweat salt crystals?
Mostly.Normal for most people
Yes—sweat contains salt, and when it dries, it can leave salty or crystal-like residue on your skin or clothes. It’s often more noticeable after heavy sweating, exercise, or hot weather.
Sweat carries salt to the surface of your skin. When the water evaporates, the salt stays behind, sometimes as a white, crusty residue—especially after a sweaty workout or a hot day. Lots of people notice it now and then.