Elizabeth Yurth, MD, FAARFM, ABAARM

Elizabeth Yurth is a double board-certified physician in Physical Medicine and Rehabilitation and Anti-Aging and Regenerative Medicine, and one of the earliest physicians in the United States to bring peptide therapeutics into responsible clinical practice. Fellowship-trained in spine and sports medicine at a Stanford-affiliated group, she served as a team physician for Stanford and Santa Clara University and consulted for the San Francisco 49ers before turning her focus to the cellular science of aging.

For twenty years she has led Boulder Longevity Institute, which she co-founded as one of the first full-spectrum longevity clinics in the world, integrating hormone optimization, peptide therapy, regenerative orthopedics, and cellular medicine. Her work centers on a pathway-first model that targets the cellular machinery of aging, from mitochondrial function to autophagy and inflammatory signaling. She has played a foundational role in developing the clinical frameworks, dosing strategies, and safety protocols many practitioners now rely on, and through her Human Optimization Academy she has trained clinicians worldwide in peptide and hormone therapeutics. She holds faculty appointments with IPS, Longevity Docs, and nuBioAge.

In 2026 she was invited to present testimony before the FDA's Pharmacy Compounding Advisory Committee on the therapeutic use of compounded peptides, drawing on three decades of clinical experience to translate emerging science into protocols clinicians can use safely.