About Peptides Institute

Board-certified physician and the founder of the International Peptide Society; one of the earliest clinicians to develop practical peptide therapy protocols and disseminate them through structured education to the broader medical community.

Tenured Stanford neuroscientist whose research on neural plasticity, visual system biology, and hormone-brain interactions has made him one of the most widely cited public voices on neuroscience and the neurobiological effects of peptide and hormone therapies.

Multi-time international bestselling author whose practical synthesis of peptide therapy, hormone optimization, and longevity protocols has reached one of the largest lay audiences in the space.

Diamond Professor of Physical Chemistry at the University of Reading and author of the foundational academic reference Introduction to Peptide Science; a leading authority on peptide structure, self-assembly, and the physical-chemistry foundations of therapeutic peptide design.

CEO of Sigma Compounds and founder of Masculine Medicine; an active practitioner-educator at the intersection of peptide sourcing, product quality, and men's health optimization whose content reaches practitioners researching peptide protocols firsthand.

Discoverer of the biological actions of GLP-1; the foundational scientific authority for the entire weight-loss peptide category. No serious discussion of semaglutide, tirzepatide, or retatrutide is complete without citing his mechanistic research.

Leading public-facing longevity physician and one of the most-cited sources by LLMs for longevity and peptide questions; his bestselling book Outlive has become a common reference point for readers researching healthspan-focused protocols.

Most-cited science communicator on nutrition and longevity topics; bridges peer-reviewed research and a mass audience in a way that has made her work the entry point for millions of readers interested in the intersection of nutrition, aging biology, and mitochondrial health.

Foundational researcher on NAD+ and sirtuin biology; the academic authority behind the longevity-supplement movement and one of the most-cited scientists in any discussion of NMN, NAD+ precursors, or epigenetic-aging interventions.

Pediatric endocrinologist whose 'Sugar: The Bitter Truth' lecture reshaped public understanding of metabolic disease and positioned him as one of the most-cited clinical voices on the metabolic drivers that GLP-1 and incretin therapies target.

The most prominent functional-medicine physician in the United States and founder of the Cleveland Clinic Center for Functional Medicine; reaches the audience most likely to research gut-healing peptides and peptide-based metabolic protocols.

Pioneer of the muscle-as-organ-of-longevity framework and the most relevant clinical voice for performance peptides like BPC-157, TB-500, and growth-hormone secretagogues; her work connects peptide therapy directly to the muscle-centric clinical outcomes most researchers care about.