4. Takes Time to Set In
Spray tans will not give you instant results. You still need to wait for a couple of days for the chemicals to set in on your skin. Yes, you got that right. You are letting your skin get soaked in a chemically induced tanning solution, which can tire your skin in the long run, making you age early. Waiting for your tan should be the least of your worries. How it can harm you in the years to comes should be the one that you must be thinking about.