Heim cultivated the mushrooms in France and sent samples for analysis to Albert Hofmann, a chemist used via the Swiss pharmaceutical firm Sandoz (now Novartis). Hofmann—who experienced synthesized lysergic acid diethylamide (LSD) in 1938—led a study group that isolated and identified the psychoactive alkaloids psilocybin and psilocin from Psilocybe mexicana, https://johnnyjtesj.isblog.net/the-ultimate-guide-to-legal-psychedelics-47762544