1 gram of 15x.. well all the sites say its enough for like 20 trips. That's total BS. Its enough for 4-12 trips. 12 trips if you're a lightweight and only need 1 hit. 4 trips if you're like me and need 3 huge lungfuls. Man, I need to get my site up soon, because I'll be selling 18x for 14 bucks a gram. Seeing all these people paying outrageous prices just kinda pissed me off into opening my own lil salvia shop. And the leaves I use have an average of 3.4 mg of salvinorin a which is far higher then what most companies use... bah.