AMC-Essentials scores 43/100 in pepmg's criteria-based Vendor Score, which rates only what a vendor publishes about lab testing and about itself, not its products and not its prices. What we observed: COA documents, no lab named. The biggest credibility signal pepmg weighs is how a vendor publishes lab tests: pepmg catalogued COA documents on its site, but none of them open at a testing lab's own site and none name a lab pepmg could resolve, so a buyer can read the documents without being able to confirm them at the source. Neither price nor catalog size affects this score, but for context it prices around the tracked median across the compounds it shares with other tracked vendors, over 35 tracked listings. Its prices are machine-readable and it publishes an About page, and the domain has been online about 2.7 years. This rates what AMC-Essentials publishes about lab testing and about itself, not the purity or authenticity of any vial, which pepmg can't verify, so read the COAs yourself. Research use only.

• Room to improve Publishes COA documents — no testing lab attributed — 93 COA documents found, 0 of them openable at the testing lab's own site

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