The isolation and synthesis of psilocybin transformed reports of Mexican mushrooms’ effects into chemical knowledge: in 1958, Albert Hofmann identified and named psilocybin and psilocin, then developed a synthetic version of psilocybin that would be used in later research. The discovery began with specimens arranged by R. Gordon Wasson and also brought the chemist into direct contact with the mushrooms and their ceremonial context.

From field specimens to chemical analysis

Shortly after his article about the mushrooms appeared in Life, R. Gordon Wasson arranged for specimens from Mexico to be sent to Hofmann in Switzerland for analysis. The transfer connected Wasson’s encounter with the mushrooms to a laboratory investigation: what had been encountered in ceremony could now be examined as material containing identifiable psychoactive compounds.

Isolation and synthesis

In 1958, Hofmann isolated and named the two compounds psilocybin and psilocin. He also developed a synthetic version of psilocybin, providing a form of the compound used in current research. The work therefore did more than assign chemical names to the mushrooms’ effects; it made psilocybin available as a reproducible substance for scientific study.

Experiment and return to Huautla

Hofmann also experimented with the mushrooms himself. He described the exterior world as taking on a Mexican character about thirty minutes after he had taken them, joining chemical investigation to personal experience without making the two interchangeable. In 1962, he returned to Huautla with Wasson and gave María Sabina psilocybin in pill form. She took two pills and said they did contain the spirit of the mushroom, a moment in which the newly isolated compound was brought back into the ceremonial framework from which Wasson’s specimens had come.