I respect what Jano contributes. He’s a capable, ethical analyst providing a service most legitimate labs avoid.
That said, some people treat his results with a halo effect that obscures the limits of a small, university style lab with limited equipment. He’s strong for what he does, but he’s not operating at the level of FDA or pharma development teams.
Instead of a long primer on peptide analysis, here’s one key question to ask yourself.
Google it or use AI and follow up until you’re confident in the answer.
“Are RP-HPLC and SEC-HPLC alone sufficient to detect all relevant defects/degradation in unregulated peptide or rHGH samples, or can they falsely suggest acceptable purity and efficacy?”
Take 5 minutes to find the answer, and you will have a much better understanding of the test results that come from the methods being used.