B12 lab reports
What the B12 record shows
Evidence through 2026-09-11TitrateLab tracks 2 published B12 certificate-of-analysis source records through 2026-09-11, each with a recorded purity or measured-versus-label amount result. Across 2 records with a numeric peptide-purity result, including zero, the median reported purity is 98.7%. Across 2 records with measured-versus-label dose data, 50% are within 10% of the labeled quantity. This is a public convenience sample, not a randomized market survey; one result describes one submitted sample and does not verify other batches.
Published records with a non-null purity or measured-versus-label amount result. Matching uses a normalized compound slug. No deduplication in this archive summary; relays and corrected records can remain separate. Records with neither measurement are excluded here, but can appear in the research overview's exact-token raw-record total. These are not unique certificates or batches. TitrateLab indexes reports from third-party laboratories.
Aggregate calculated: 2026-09-15T20:31:30.360312+00:00. Calculation time is not a test date.
Limits and missing evidence
- No classifiable endotoxin results were recorded.
- Coverage depends on reports that were published and available to ingest.
B12 lab-testing metrics
COAs per testing lab
Every lab testing B12 in the corpus.
Tested-purity distribution
Bins below 90% tested purity (0% of numeric purity records).
| Purity range | Certificates |
|---|---|
| 0–50% | 0 |
| 50–70% | 0 |
| 70–80% | 0 |
| 80–85% | 0 |
| 85–90% | 0 |
| 90–91% | 0 |
| 91–92% | 0 |
| 92–93% | 0 |
| 93–94% | 0 |
| 94–95% | 0 |
| 95–96% | 0 |
| 96–97% | 0 |
| 97–98% | 1 |
| 98–99% | 0 |
| 99–100% | 1 |
COAs over time
B12 source records by test month (discovery month when test date is absent).
| Month | Certificates |
|---|---|
| 2026-07 | 1 |
| 2026-09 | 1 |
Most-tested vendors
Vendors by B12 certificate count.
Published B12 certificates of analysis
2 records. Zero guesswork.
Unlock the actual vendor, purity, dose accuracy, lab, batch and saved certificate for every B12 result.
Sign in to viewIllustrative structure only. No record-level values are present in this preview.