Every Biotin certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 2 published Biotin certs in our corpus.

2
Certificates
1
Independent labs
99.6%
Median tested purity
100%
Within 10% of label dose
↑ 0%
Overdosed (≥ +7% vs label)
↓ 50%
Underdosed (≤ −7% vs label)

Verified Biotin certificates of analysis

VendorPurityDose vs labelLabTested
Peptide Club 99.4% -7.0% Freedom Diagnostics 2026-05-07 View COA →
Peptide Club 99.59% +0.5% Freedom Diagnostics 2026-05-07 View COA →

More COA results by compound