Alex Belser, PhD, is a clinical scientist and licensed psychologist with over two decades of leadership in psychedelic research. His work has advanced therapies involving psilocybin, MDMA, ketamine, and DMT. Currently at Yale University, he researches psilocybin-assisted therapy for OCD. Dr. Belser is co-creator of the EMBARK model of psychedelic-assisted therapy, co-founder of the NYU Psychedelic Research Group, and founder of Nautilus Sanctuary. He has held senior clinical leadership roles in industry and teaches internationally on psychedelic medicine.