Peptides Part 1: Growth Hormone, Body Composition & What’s Actually Safe

In Part 1 of this peptide series, Dr. Nick and Alexis Clark, PA break down what peptides are, how they work, and why safety and sourcing matter more than ever. With peptides exploding in popularity online, they explain the real science behind growth hormone–related peptides and how they affect lean muscle, fat loss, recovery, sleep, and overall body composition.

This episode focuses on peptides that stimulate your body’s own growth hormone production—such as Sermorelin, CJC-1295, Tesamorelin, Ipamorelin, IGF-1 LR3, and MOTS-C—including how they work, when they’re useful, how they differ from synthetic HGH, and why proper medical oversight is critical.

Dr. Nick also shares why ordering peptides online is dangerous, how mislabeled products can contain contaminants, and how these therapies are responsibly used in clinical practice to support metabolic health, aging, and recovery. This is a grounded, evidence-based introduction designed to cut through hype and misinformation.

Part 2 will dive deeper into additional peptides and advanced clinical applications.