The documents behind the vial.
Certificates of analysis, purity figures and handling limits get quoted constantly and explained rarely. These guides set out what each measurement actually establishes — and, more usefully, what it does not.
How to read a certificate of analysis
What each field on a peptide COA means, what an HPLC purity figure actually measures, what a certificate cannot tell anyone, and how to verify one independently.
5 sections6 questionsRead the guideWhat actually degrades a peptide
Why lyophilised powder and reconstituted solution are two different stability problems, the chemistry that breaks peptides down, and which handling choices measurably matter.
6 sections6 questionsRead the guideWhat the July 2026 FDA advisory vote actually did
Seven peptides went before the FDA's Pharmacy Compounding Advisory Committee and six were recommended for the 503A Bulks List. What that recommendation is, what has to happen next, and the four things it is routinely misreported as meaning.
4 sections6 questionsRead the guide