Guides

No-jargon primers. For readers who want to understand peptides first. - Reddit

Three pieces that give you the mental model. If you want to know what you’re looking at when you read research on a specific peptide, or why the legal picture looks the way it does, start here.

Guide · 6 min read

What are peptides?

A primer on peptides as biological molecules, how they differ from small-molecule drugs, and why that distinction matters when you’re evaluating peptide therapy.

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Guide · 7 min read

How peptides work

Receptor binding, signal amplification, half-life, and why peptides tend to act with more tissue specificity than small-molecule drugs. The mechanistic story, without the hand-waving.

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Guide · 8 min read

Compounding & the law

How 503A and 503B compounding pharmacies work, what FDA Category 1 and Category 2 mean for a given peptide, and why drug shortages change the legal picture.

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References

The Century-Long Journey of Peptide-Based Drugs. Antibiotics (Basel) (2024).
Bulk Drug Substances Used in Compounding Under Section 503A of the FD&C Act. FDA (n/a).

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