Married to Humphry Osmond, Jane Osmond developed networks of care and friendship that supported the development of psychedelic science.

Betty Eisner was a major force in the psychedelic revolution, but her career was also defined by notable professional transgressions.

Anaïs Nin wrote about Timothy Leary in her diary. She didn't like him. But what does this have to do with expertise and American politics?

Connie Littlefield discusses her new documentary, "Better Living Through Chemistry," about psychedelic pioneers Alexander "Sasha" & Ann Shulgin.

Look back on the first 25 weeks of our "Women in the History of Psychedelic Plant Medicines" series and learn how to become a contributor to the series.

Simone de Beauvoir read and edited everything Jean-Paul Sartre published, and wrote a valuable account of his mescaline encounter.

Ayahuasca’s place in mestizo and Indigenous Peruvian healing practices featured extensively in Marlene Dobkin de Rios’ work as a medical anthropologist and transcultural psychotherapist.

Florence Nichols was a Canadian missionary and pioneer of psychedelic therapy, using LSD to treat mental illness on three different continents.

In the second half of the 20th century, farmers on the Canadian prairies produced ergot (Claviceps purpurea) for use in the pharmacological industry. But...

You might assume that medicinal contraceptives are recent products of modern western science. In fact, Indigenous healers and midwives in the Americas used botanical...