Peptides Explained: Science, Safety, and the Billion-Dollar Confusion
Sat Feb 07 2026
Peptides are suddenly everywhere, from GLP-1 weight-loss drugs to recovery stacks, skincare, and “research-grade” compounds sold online.
But what are peptides really?Which ones are proven?Which ones are dangerous?And why is the industry being called the Wild West right now?In this episode of the 90% Healthy Podcast, we sit down with Dr. Melissa Petersen, clinician, longevity strategist, and founder of Peptide University, to cut through the confusion.
We cover:
What peptides actually are (and why your body already makes thousands of them)Why GLP-1 drugs are peptides — and why dosing matters more than people realizeThe difference between FDA-approved, compounding pharmacy, and “research-grade” peptidesWhy bro science and influencer stacks are putting people at riskWhat the FDA crackdown really means for consumersHow to think about peptides as signals, not shortcutWhy peptides can enhance health, but never replace movement, sleep, nutrition, or even purpose🎧 Listen now and share this with someone who’s peptide-curious but confused.
This episode is for anyone curious about peptides but unwilling to gamble with their health.
Guest: Dr. Melissa Petersen | https://mypeptideuniversity.com/
Hosts: Don Moxley | https://trainrecoverwin.com/
Klaudia Balogh | http://longevityjournalist.com/
More
Peptides are suddenly everywhere, from GLP-1 weight-loss drugs to recovery stacks, skincare, and “research-grade” compounds sold online. But what are peptides really?Which ones are proven?Which ones are dangerous?And why is the industry being called the Wild West right now?In this episode of the 90% Healthy Podcast, we sit down with Dr. Melissa Petersen, clinician, longevity strategist, and founder of Peptide University, to cut through the confusion. We cover: What peptides actually are (and why your body already makes thousands of them)Why GLP-1 drugs are peptides — and why dosing matters more than people realizeThe difference between FDA-approved, compounding pharmacy, and “research-grade” peptidesWhy bro science and influencer stacks are putting people at riskWhat the FDA crackdown really means for consumersHow to think about peptides as signals, not shortcutWhy peptides can enhance health, but never replace movement, sleep, nutrition, or even purpose🎧 Listen now and share this with someone who’s peptide-curious but confused. This episode is for anyone curious about peptides but unwilling to gamble with their health. Guest: Dr. Melissa Petersen | https://mypeptideuniversity.com/ Hosts: Don Moxley | https://trainrecoverwin.com/ Klaudia Balogh | http://longevityjournalist.com/