David E. Nichols is a researcher (specifically pharmacologist and medicinal chemist) at Purdue University (semi-retired in 2012). His psychedelic work has been ongoing since 1969.
Next to research (papers linked below), he is also the founding president of the Heffter Research Institute.
Learn more on his Wikipedia page.
Not to be confused with Charles D. Nichols (his son), whom he often collaborates with.
Explore more info with a membership (any level)
🧑 Extended profile information
📈 In-depth psychedelic reports (Sprout & Tree)
🪄 Weekly psychedelic research & implementation newsletter (free)