Psilocybin Psilocybin, the psychoactive compound present in "magic mushrooms," has long been useful for ceremonial and medicinal applications among Indigenous peoples for millennia. Psilocybin incorporates a hallucinogenic effect on the brain. Quite a few other states have decriminalized these substances, putting them on the right track for eventual legalization. LSD https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share