What do you think about salvia?

13 states and several local governments have banned or otherwise regulated. For example in Florida, it is a felony (15 years jail time) to possess or sell it.

There are no known studies suggesting that salvia is addictive or its users prone to overdose or abuse and Reports of salvia-related emergency room admissions are virtually nonexistent, even though some 1.8 million people had tried it, (up to 7% of college students).

(Almost all of this information came from this article and is pretty much directly quoted).