(RAND) – This is the first report from the 2025 RAND Psychedelics Survey, which was fielded in September 2025 to a probability-based, nationally representative sample⁠^[1] of 10,122 adults ages 18 years and older living in the United States at that time. This report presents top-line results on the use of 11 psychedelic substances and detailed information about microdosing (i.e., taking a small fraction of a full dose, often intermittently on a schedule) for psilocybin, LSD, and MDMA. These results should be of interest to those contemplating changes to psychedelics policies, researchers interested in use patterns (especially for microdosing), and others interested in learning more about these substances. (Read More)