personally i just stick to achuma (its simpler that way) but the best way to know you aren't getting a PC would be to
A. buy a named clone (like juul's giant or something)
B. get it from a trustworthy entheogenic vendor (you can find one in the supplier section, as it is a live botanical)
from what i understand nearly all (if not all) the ones commonly sold in places like home depot or whatever are PC.
though from a greenhouse, you might be able to find some active ones.
i highly recommend adding a penis plant to your shopping list as well (both for novelty and potency - plus if it has multiple pups at once, it grows really fast)
My wind instrument is the bong
CHANGA IN THE BONGA!
樹