3rd party testing

Quick PSA for anyone using Verfiied Peptides (VP). I initially chose VP as what looked to be a suitable replacement for the now-defunct Peptide Sciences. They are one of the few RUO/UGL suppliers that publish COAs which include the much-needed endotoxin (LAL) testing in addition to HPLC...

Where would one send their vial of peptides to get tested analyzed? I do like the fact that certain sites do publish COAs, but I feel it would be safe to assume that unless we do random 3rd party tests ourselves, there's no real way to verify 100% that what they sell is legit and pure, and that...