Health Guide — Page 7

The peptide library, written by clinicians.

48 long-form articles on peptide therapy — what each compound does at the cellular level, who it's for, what the FDA says about it, and where the gray-market vendors get the story wrong. Every guide is reviewed by a US-licensed physician and updated as evidence evolves.

Articles

Sermorelin: The GHRH Analog With a Stranger History Than You Think

Sermorelin was FDA-approved for 20 years, then quietly pulled — not for safety. Learn how this GHRH analog works, what the research shows, and when physician oversight matters.

Karl Ziermann, DO · 10 min read

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Longevity · 16 min read

NAD Injections and NAD+ Injections: What the Mechanism Actually Tells You (And What It Doesn't)

NAD injections deliver the coenzyme directly — bypassing the conversion steps that make oral supplements unreliable. Here's the mechanism, the honest evidence, and how physician-prescribed injections compare to IV and pills.

Guides · 11 min read

Is Peptide Therapy Safe? The Answer Depends on Who's Running the System

Is peptide therapy safe? The honest answer depends on physician screening, 503A sourcing, and structured monitoring. Here's what that looks like in practice.

Guides · 16 min read

503A Compounded Peptides: What the FDA's Review Actually Means

503A compounded peptides are legal—but the rules are specific. Here's what the 503A/503B framework, bulk substance categories, and pharmaceutical-grade standards actually mean for patients in 2026.

Guides · 13 min read

What Is Peptide Therapy? The Honest Explanation

Peptide therapy uses short-chain amino acid signals your body already reads. Here's the real biology, the evidence limits, and how to tell a legitimate program from a vial with a wink.

Guides · 14 min read

Are Peptides Legal in 2026? The Actual Regulatory Framework

Are peptides legal in the US? The answer is per-peptide and per-pathway. Here's how 503A compounding, the bulks list, the 2026 FDA reclassification, and gray-market law actually work.