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The Verification Standard — What Makes a COA Trustworthy
Identity confirmation, purity evidence, contaminant screening, and chain of custody: the four pillars that separate a verified certificate from a marketing document.
The Attestory registry
Educational articles on how to read, audit, and verify a Certificate of Analysis for research peptides. Each piece follows the auditor's voice: concrete standards, no alarm, no sales pitch.
Identity confirmation, purity evidence, contaminant screening, and chain of custody: the four pillars that separate a verified certificate from a marketing document.
How a verifier reads a Certificate of Analysis: HPLC chromatograms, LC-MS mass spectra, Karl Fischer water content, and LAL endotoxin — the values to demand and the flags to watch.
What ISO/IEC 17025 accreditation means, why an independent laboratory matters for COA validity, and how to confirm accreditation status before trusting a certificate.
MHRA-authorised for type 2 diabetes (September 2022) and weight management (November 2023). Ireland authorises via EMA/HPRA. What prescription-only means in each jurisdiction — and how counterfeit pens seized in 2025–2026 MHRA raids differ from the authorised Eli Lilly product.
A COA is the batch-specific laboratory document reporting purity by HPLC percentage peak area, identity by mass spectrometry, and net content. Four core components explained — and how to distinguish a genuine record from a generic or recycled document that cannot be traced to any specific batch.
Independence removes the conflict of interest; ISO/IEC 17025 accreditation confirms technical competence. Why both conditions must hold simultaneously, how to verify accreditation scope in any national register, and what distinguishes an auditable COA from a self-referential one.
Peptides discussed here are research materials where applicable — not consumer goods and not approved medicines. Legal status varies by country. Attestory is an educational verification registry: nothing here recommends use, dose, or a source of supply, and nothing here is medical or legal advice. Anyone considering these substances should consult a licensed physician who can assess their individual situation.