Peptidology
Education library

Learn the lab fundamentals

Read the documentation before you read the marketing. COAs, analytical methods, sterility testing, and what Research Use Only actually means.

19 guides · 5 topics · Lab literacy · Research Use Only — not for human or animal consumption.

Peptidology is US-operated; guides may emphasize FDA context — local rules differ.

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Showing 3 of 19 guides

Gloved hands holding test tubes in a laboratory.
Lab literacy

Reading a Certificate of Analysis

What a COA actually proves, which sections matter, and the red flags that separate a real document from decoration.

Updated 2026-05-20

Empty glass laboratory flasks on a clean bench — generic lab equipment, no product packaging.
Lab literacy

How to Read a Peptide COA Batch Number

The batch number ties a physical vial to a specific lab report. How to match labels, COAs, and invoices — and what breaks the chain.

Updated 2026-06-07

Colorful chemical solutions in laboratory glass beakers.
Lab literacy

Purity Percentages on COAs: What 98% Actually Means

Purity claims are widely misread. What the percentage measures, what it excludes, and why context on the chromatogram matters.

Updated 2026-06-07