COA results by compound

Cortagen COA — Verified Certificate of Analysis Results

20 independent third-party certificates of analysis for Cortagen, from 2 labs across 9 vendors (2025-02-08 to 2026-07-02).

Every Cortagen certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 20 published Cortagen certs in our corpus.

20
Certificates
2
Independent labs
99.6%
Median tested purity
50%
Within 10% of label dose
↑ 57%
Overdosed (≥ +7% vs label)
↓ 14%
Underdosed (≤ −7% vs label)

Verified Cortagen certificates of analysis

VendorPurityDose vs labelLabTested
Unknown vendor (review) 99.34% -10.3% Freedom Diagnostics 2026-07-02 View COA →
Unknown vendor (review) 99.31% +1.1% Freedom Diagnostics 2026-06-07 View COA →
Unknown vendor (review) 99.23% +13.8% Freedom Diagnostics 2026-06-02 View COA →
Unknown vendor (review) 99.47% +82.7% Freedom Diagnostics 2026-05-30 View COA →
Unknown vendor (review) 99.1% +5.7% Freedom Diagnostics 2026-05-30 View COA →
Peptira LLC 99.74% +0.4% Freedom Diagnostics 2026-05-28 View COA →
Unknown vendor (review) 98.2% +8.1% Freedom Diagnostics 2026-05-08 View COA →
Unknown vendor (review) 96.4% -8.5% Freedom Diagnostics 2026-05-02 View COA →
Unknown vendor (review) 99.57% +3.3% Freedom Diagnostics 2026-05-01 View COA →
Somachems 99.808% — Freedom Diagnostics 2026-02-16 View COA →
Unknown vendor (review) 99.808% — Freedom Diagnostics 2026-02-16 View COA →
Unknown vendor (review) 99.808% — Freedom Diagnostics 2026-02-16 View COA →
Unknown vendor (review) 99.501% +14.9% Freedom Diagnostics 2026-01-23 View COA →
Peptide Technologies 99.518% +10.8% Freedom Diagnostics 2026-01-12 View COA →
Unknown vendor (review) 99.675% +7.4% Freedom Diagnostics 2025-12-20 View COA →
Edge Peptides 99.919% +26.2% Janoshik 2025-12-08 View COA →
Xcel Peptides 99.576% +41.8% Janoshik 2025-11-11 View COA →
Verified Peptides 99.895% — Janoshik 2025-03-26 View COA →
Uther Pharmaceutical 99.827% — Janoshik 2025-02-26 View COA →
Biolongevity Labs 99.72% — Freedom Diagnostics 2025-02-08 View COA →
Cortagen research & evidence → Verify a Cortagen COA → Browse vendors →

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