New cultivation methods are making psychedelic mushrooms stronger, and fiendishly potent varieties are kicking in faster and lasting longer—even if you eat only a fraction of what you would with another variety. Subsequent testing showed that one batch of Mattucci’s mushrooms contained almost 5 percent psychedelic alkaloids, which was once unheard of within the Psilocybe genus. Typically, mushrooms contain 1 percent of these psychoactive compounds, although species like Psilocybe azurescens are generally stronger, and some varieties within the Panaeolus genus are even more potent.
Psychedelic Mushrooms Are Getting Much, Much Stronger
American Buddhist Net 