Educational content only. Not medical advice, and no doctor-patient relationship is created. Read the medical disclaimer

THE PEPTIDE ROUNDTABLE

Youthful Pep Talk: Expert Conversations on Peptide Science

Recorded conversations with physicians, pharmacists and researchers, plus Perspectives and Opinion vs. Evidence reviews. Hosted by Dr. Farhan Tahir. Academic discussion only, not medical advice, and no dosing.

Perspective

Welcome to the Peptide Roundtable

Why we built a place where clinicians can disagree in public, show their evidence, and help patients tell opinion from proof.

Opinion vs. Evidence

Opinion vs. Evidence: Reading a Clinician's Peptide Tier List

A popular clinician tier list ranks peptides from S to D. We put each ranking next to our evidence grade to show where experience and published data agree, and where they part ways.

Perspective

Become a Roundtable Contributor

Physicians, pharmacists and researchers: join a Pep Talk or write a Perspective. Here is how we work.

Youthful Pep Talk

Beyond Semaglutide: The Next Wave of Incretin Peptides

Triple agonists, liver fat, muscle preservation and what the newest phase 3 trials really show.

Youthful Pep Talk

Healing Peptides Under the Microscope

Why repair peptides are so popular, why the human evidence is thin, and what a good trial would look like.

Youthful Pep Talk

The Growth Hormone Axis, Without the Hype

Secretagogues versus growth hormone, IGF-1 monitoring, and the safety questions that still need answers.

Youthful Pep Talk

Mitochondria, NAD+ and the Biology of Aging

Can peptides that target the mitochondria or telomeres change how we age? A look at the science so far.

Youthful Pep Talk

Peptides and the Brain

Nasal neuropeptides, sleep, anxiety and memory: separating promising signals from wishful thinking.

Youthful Pep Talk

Hormones, Fertility and Sexual Health

How hypothalamic and pituitary signals drive fertility and libido, and where peptides fit in modern care.

Youthful Pep Talk

Immune Peptides and Inflammation

A rheumatologist's view on immune-modulating peptides, autoimmunity and the evidence we still need.

FOR CLINICIANS

Peptide Medicine & Longevity Courses for Physicians

Dr. Tahir is building CME-style courses for physicians, nurse practitioners, physician assistants and pharmacists who want to practice peptide and longevity medicine responsibly: the evidence, FDA and compounding rules, patient selection, monitoring and safety. Join the waitlist to hear first when enrollment opens.

Interested in speaking on Youthful Pep Talk or contributing a Perspective? Mention it in the form.

We will never sell, rent or share your information. We use it only to contact you about courses and Roundtable opportunities, and you can opt out anytime.

THE YOUTHFUL PEPTIDE BRIEF

Peptide science moves fast. Stay current.

New trials, FDA decisions and Roundtable conversations arrive every month. Get a plain-language summary from Dr. Tahir, about twice a month. Education only, never sales pitches.

Your privacy matters. We will never sell, rent or share your email or personal information. We use it only to send this newsletter, and you can unsubscribe anytime with one click. Educational content only, not medical advice.

YOUTHFUL

PEPTIDE EDUCATION

Plain-language, evidence-graded education on peptides and the foundations of longevity. Written and reviewed by Farhan Tahir, MD, FACR, Dip. ABOM.

YOUTHFUL MEDICINE

Doylestown, PA

New York, NY

YouthfulPeptide.com is an educational resource from Youthful Medicine. Content is for general information only and is not medical advice. Using this site does not create a doctor-patient relationship. Many peptides discussed here are not FDA-approved, and discussion does not mean Youthful Medicine prescribes them. Always consult a licensed healthcare provider before starting, stopping or changing any treatment. In an emergency, call 911.

© 2026 MDNUTRICS PLLC dba Youthful Vitality and Longevity Medicine®. All rights reserved.

THE YOUTHFUL PEPTIDE BRIEF

Peptide science moves fast. Stay current.

New trials, FDA decisions and Roundtable conversations arrive every month. Get a plain-language summary from Dr. Tahir, about twice a month. Education only, never sales pitches.

Your privacy matters. We will never sell, rent or share your email or personal information. We use it only to send this newsletter, and you can unsubscribe anytime with one click. Educational content only, not medical advice.

YOUTHFUL

PEPTIDE EDUCATION

Plain-language, evidence-graded education on peptides and the foundations of longevity. Written and reviewed by Farhan Tahir, MD, FACR, Dip. ABOM.

YOUTHFUL MEDICINE

Doylestown, PA

New York, NY

YouthfulPeptide.com is an educational resource from Youthful Medicine. Content is for general information only and is not medical advice. Using this site does not create a doctor-patient relationship. Many peptides discussed here are not FDA-approved, and discussion does not mean Youthful Medicine prescribes them. Always consult a licensed healthcare provider before starting, stopping or changing any treatment. In an emergency, call 911.

© 2026 MDNUTRICS PLLC dba Youthful Vitality and Longevity Medicine®. All rights reserved.