Ameano Peptides backs its catalog with third-party laboratory testing and publishes the results openly. The public COA library on the AMP site lists roughly fifty products, and each one links to a lab report carrying a unique task number that can be checked against the testing laboratory's records. The reports we reviewed come from Janoshik Analytical, an independent third-party lab widely used across the research peptide market.
The testing shown covers two things: purity by high-performance liquid chromatography (HPLC) and identity confirmation by mass spectrometry. AMP states a 99 percent or higher purity standard across its products. The company also describes its own production steps: laboratory-grade purified water as the base, mannitol and sucrose as stabilizing excipients, electrospray ionization mass spectrometry (ESI-MS) to confirm molecular structure, a 0.22 micron filtration step, and a controlled 36-hour lyophilization cycle.
Two limits are worth stating plainly, because they are why this review sits at 3.2 rather than higher. First, the COAs show purity and quantification, but they do not show per-lot endotoxin or sterility testing, which is the documentation researchers most want for injectable-format material. Second, the testing runs through a single laboratory that is not ISO/IEC 17025 accredited, and the library reads as a per-product snapshot rather than a rolling per-batch record with a consistency history. None of that contradicts the purity data on file. It simply means the depth of accreditation and lot-level safety testing has room to grow.
You can verify any compound's COA directly in the AMP COA library before you order.