How to Verify Research Peptide Quality — 5-Point Checklist | SMART MD

How to Verify Research Peptide Quality

A 5-point checklist that separates legitimate suppliers from marketing operations. Free PDF — used by 200+ research practices and clinics.
  1. Independent lab COA — not captive in-house testing. Multi-lab verification is the gold standard.
  2. Public lookup before purchase — if you have to commit to buying before seeing the COA, that's a red flag. Try it yourself: smartmdpeptides.com/verify
  3. HPLC purity ≥98% — listed on every COA, with mass-spec identity confirmation. Below 98% means impurities are detectable.
  4. Endotoxin + sterility data — for any injection-based research, target ≤25 EU/mg endotoxin + verified sterility result.
  5. Research-Use-Only labeling — vials and packaging should be labeled RUO. Suppliers marketing for human consumption are non-compliant and unreliable.

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Includes example COAs, red flags to watch for, and a vendor-evaluation worksheet you can save and reuse.

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Why this checklist exists

Over the last 18 months, several major research peptide suppliers shut down — Peptide Sciences, Amino Asylum, Paradigm Peptides. Researchers and clinics that survived the supply-chain collapse moved to suppliers that actually publish their analytical work.

SMART MD operates on all five criteria above. Three independent U.S. labs verify every batch. Public COA lookup before purchase. RUO-compliant operations. Real human support via Joe at (251) 387-7712.

This checklist works for any supplier — not just us. If a supplier you currently use fails any item, ask why.