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A complete Certificate of Analysis should show an HPLC result with a single dominant peak at the stated purity, a mass-spectrometry result confirming the molecular weight matches the intended compound, a bacterial endotoxin result from the Limulus Amebocyte Lysate (LAL) assay, the batch or lot number, and the name of an independent testing laboratory with a recent date

It means you are buying a research-stage peptide product from a brand that describes its manufacturing and testing to documented standards, not an FDA-approved drug with decades of clinical trial data behind it

Patients hear one thing online, another thing from clinics, and something completely different from pharmacies or social media influencers

Compounded medications or peptides, if prescribed, are not FDA-approved and may be prepared by state-licensed 503A compounding pharmacies based on individual patient needs