Psilocybin Psilocybin, the psychoactive compound found in "magic mushrooms," continues to be useful for ceremonial and medicinal needs among Indigenous peoples for millennia. Psilocybin provides a hallucinogenic effect on the brain. In its purest form, LSD seems like a white or colorless crystalline powder, has no smell, and could flavor https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share