Inside the sterile walls of a cutting-edge laboratory, researchers in white coats meticulously measure doses of a substance once relegated to the shadows of the counterculture movement—LSD. This scene might have seemed improbable during the height of its fame as a psychedelic emblem in the 1960s. Yet today, LSD is being reexamined with the precision and seriousness of scientific inquiry, illustrating a remarkable journey from cultural phenomenon to a subject of rigorous academic study.