PEPTIDE PRESS
RESEARCH · TESTING · TRIALS · REGULATION
TESTING · JULY 11, 2026 · 5 MIN READ · 3 PRIMARY SOURCES
How to read a peptide Certificate of Analysis

Identity, purity, potency, net content — what each line on a COA actually proves, walked through on a real report, and the gaps a clean-looking document can still hide.

A purity percentage and a fill weight are different facts. This lot is 99.7% pure and holds 12.6 mg where the label says 10 — read only the first and you would never know the second.

Peer-reviewed studies and preclinical-to-clinical translation, read with a skeptical eye.


Testing & Quality Control

All testing & quality control →

How peptides are analyzed, what a COA proves, and where clean-looking reports still mislead.


Regulation & Enforcement

All regulation & enforcement →

FDA guidance, warning letters, and what "research use only" does and does not mean.


Registered trial status, phases, and published data — reported as data, not recommendation.


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TRIALS · JUNE 28, 2026 · 2 MIN READ · 2 PRIMARY SOURCES
The Peptide Press Briefing

A weekly digest of peptide research, testing, clinical trials, and regulatory developments. No dosing advice. No product pitches.