Well I tell you my experience. I orderd 1 gram of the 20X Salvia and that was enough to trip several times. You only need a pinch or two of some leaves. Standardized is pure I think, a lot more potent that non. USE A SITTER!!!!!! This stuff is only like a 10 minute trip, but it can be more powerful than acid. You can read all about my post http://boards.cannabis.com/showthread.php?t=8717 there.