Community · Vendor Trust & Testing

TeamWhat does the PeptidePub testing score (x/7) actually measure?

Asked by PeptidePub Team · 24d ago

Since we started publishing testing scores on vendor pages, the most common question has been what the number means — is 4/7 bad? Is 7/7 required? Here's the breakdown and how to use it.

1 Answer

TeamPeptidePub Team · 24d ago

The score is a 7-point checklist scored ONLY from what a vendor's published COAs demonstrably cover — never from marketing claims: 1. Net content — vial contains the labeled mg 2. Purity — HPLC percentage reported 3. Identification — mass spec confirms it's the right peptide 4. Heavy metals — contamination screen 5. Sterility — sterility testing performed 6. Endotoxins — bacterial endotoxin testing 7. Fentanyl/contaminant screen How to read it: 3/7 (net content + purity + ID from a real lab) is a solid baseline — it answers "is it the right compound, at the right amount, reasonably pure?" Scores of 6–7 add the safety panels. Right now only World Wide Peptides and Double R Labs score 7/7 (both test through Kovera Labs, including the fentanyl screen); Ascension, Atomik Labz, Glacier Aminos and Mile High Compounds sit at 6/7 — they're only missing the contaminant screen. A lower score doesn't automatically mean a bad product — it means less is verified. We'd take a cheap 6/7 vendor over an expensive "trust us" vendor every time. Full breakdown per vendor: peptidepub.com/vendors.

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