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Peptide guidesResearch peptides vs compounded peptides: what's the differenceThe same peptide name can describe a research chemical, a compounded prescription or an approved drug. They are not the same product and are not regulated the same way.Oct 26, 2026News & regulationBPC-157's legal status in 2026, explainedIn April 2026 the FDA took BPC-157 off its list of peptides with safety concerns for compounding. That is not an approval. Here is what changed and what didn't.Oct 26, 2026Quality & testingHPLC vs mass spec: what each peptide test actually provesHPLC gives you a purity number. Mass spectrometry tells you what the molecule is. A COA that only has one of them leaves a question open.Oct 26, 2026