Before you buy

The vendor landscape

Who actually makes peptides, who resells them, and why one site charges $30 and another charges $90 for the same vial.

Reading a lab report (the COA)

The four tests that matter, what a real report looks like, and what the numbers don't tell you.

Lot numbers, independent testing, and checking for yourself

How to connect a report to a vial, why community testing changed the market, and how to send in a vial yourself.

Red flags, scams, and how beginners lose money

The patterns that repeat: fake reports, weird payment requests, the vanishing vendor, and the underdosed bargain.

When it arrives

The first ten minutes with a package: what to check, what to photograph, and what goes in the fridge.