Ritual use of psychoactive substances discovered in ancient Egypt

For the first time, direct evidence of the use of psychoactive substances during rituals in the Ptolemaic Kingdom in Ancient Egypt has been provided. The discovery, published in the journal Scientific Reports, is based on the analysis of a ritual vase over 2,000 years old, which revealed traces of psychoactive plants used in religious and spiritual practices. The vase is adorned with the head of the Egyptian god Bes, a grotesque but benevolent deity often used as a protective amulet for the home.

The research, coordinated by Professor Enrico Greco from the University of Trieste, in collaboration with the Tampa Museum of Art, the University of South Florida and the University of Milan, was made possible thanks to the crucial support provided by Elettra Sincrotrone Trieste, which contributed with advanced techniques, such as Fourier transform infrared spectroscopy (SR µ-FTIR) coupled with synchrotron radiation. Chiaramaria Stani, CERIC-ERIC researcher at Elettra Sincrotrone Trieste’s SISSI beamline, explained: “These analyses made it possible to identify the ceremonial content of the vase, although the residual traces were minimal, but well preserved in the porosity of the pottery”.

This technology made it possible to analyse the residual traces inside the vase, revealing the presence of plants such as Peganum harmala (Syrian rue), Nymphaea nouchali (blue lotus) and species of the Cleome genus, all known for their psychoactive properties. The analysis also indicated that the vase was used in rituals involving the achievement of altered states of consciousness, probably a means for communicating with the divine and facilitating mystical-ritual experiences.

The research not only confirms previous hypotheses based on texts and iconography but it also provides solid physical evidence of the sophisticated use of natural substances by the Egyptians. The multidisciplinary approach, combining science, history and culture, was essential for solving this ancient mystery, confirming the importance of collaboration between research institutes like Elettra Sincrotrone Trieste and the universities involved.