← The courseModule 01: Before you buy
8 min read

Lot numbers, third-party testing, and checking for yourself

How to tie a certificate to a vial, why independent testing changed the market, and how to send a sample yourself.

The lot number on a vial is the only thing connecting it to a test result. Everything in the previous lesson depends on that link, so it is worth understanding what a lot number is and is not.

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Reading a certificate of analysisRed flags, scams, and how people lose money
Lot numbers, third-party testing, and checking for yourself — Before you buy — The Peptide Course | Peptide Reference Guide