Uploaded June 2026 | Updated September 2026, 3 weeks ago
Thymosin Alpha-1, TB4, and BPC-157 have been used in functional medicine for decades, yet most people have never heard of them, and in the United States they’ve faced significant regulatory restrictions since 2023. In this episode, Dr. Aaron Hartman takes a close look at the science, clinical history, and practical applications of several of the most important and most misunderstood peptides available today.
---
📖 UnCURABLE: From Hopeless Diagnosis to Defying All Odds
For everyone medicine has let down → UnCurableBook.com
---
Dr. Hartman begins with Thymosin Alpha-1, which has been approved for human use in over 35 countries for conditions ranging from hepatitis and cancer support to immune modulation, and explains why it still lacks FDA approval in the United States despite more than 11,000 human subjects studied. He then covers TB4 and its active fragment TB-500, walking through their roles in tissue repair, wound healing, and scarring regulation, as well as BPC-157, a 15-amino-acid compound isolated from gastric juice that supports gut healing, reduces inflammation, and has generated over 100 preclinical studies. The episode also covers the Wolverine Peptide, growth hormone secretagogues, and the copper tripeptide GHK-Cu, with honest guidance on which are still accessible, which carry cancer risk considerations, and why foundational health always comes before peptide use.
This is Part 3 of 4 — Part 2 covers GLP-1s and their clinical applications; Part 4 covers how Dr. Hartman uses peptides in his clinical practice, including who is and is not a good candidate.
---
ABOUT AARON HARTMAN, MD
Aaron Hartman, MD is a triple-board-certified physician, bestselling author of UnCURABLE: From Hopeless Diagnosis to Defying All Odds, and founder of Richmond Integrative & Functional Medicine. Dr. Hartman is known as the champion of the medically abandoned—helping people once labeled “uncurable” find REAL health and hope through the body’s natural abilities to heal and repair.
AaronHartmanMD.com
Thymosin Alpha-1, TB4, and BPC-157 have been used in functional medicine for decades, yet most people have never heard of them, and in the United States they’ve faced significant regulatory restrictions since 2023. In this episode, Dr. Aaron Hartman takes a close look at the science, clinical history, and practical applications of several of the most important and most misunderstood peptides available today.
---
📖 UnCURABLE: From Hopeless Diagnosis to Defying All Odds
For everyone medicine has let down → UnCurableBook.com
---
Dr. Hartman begins with Thymosin Alpha-1, which has been approved for human use in over 35 countries for conditions ranging from hepatitis and cancer support to immune modulation, and explains why it still lacks FDA approval in the United States despite more than 11,000 human subjects studied. He then covers TB4 and its active fragment TB-500, walking through their roles in tissue repair, wound healing, and scarring regulation, as well as BPC-157, a 15-amino-acid compound isolated from gastric juice that supports gut healing, reduces inflammation, and has generated over 100 preclinical studies. The episode also covers the Wolverine Peptide, growth hormone secretagogues, and the copper tripeptide GHK-Cu, with honest guidance on which are still accessible, which carry cancer risk considerations, and why foundational health always comes before peptide use.
This is Part 3 of 4 — Part 2 covers GLP-1s and their clinical applications; Part 4 covers how Dr. Hartman uses peptides in his clinical practice, including who is and is not a good candidate.
---
ABOUT AARON HARTMAN, MD
Aaron Hartman, MD is a triple-board-certified physician, bestselling author of UnCURABLE: From Hopeless Diagnosis to Defying All Odds, and founder of Richmond Integrative & Functional Medicine. Dr. Hartman is known as the champion of the medically abandoned—helping people once labeled “uncurable” find REAL health and hope through the body’s natural abilities to heal and repair.
AaronHartmanMD.com
