TB-500 (TB4) COA — Verified Certificate of Analysis Results
6 independent third-party certificates of analysis for TB-500 (TB4), from 3 labs across 5 vendors (2025-05-07 to 2026-05-25).
Every TB-500 (TB4) certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 6 published TB-500 (TB4) certs in our corpus.
Assay metrics
TB-500 (TB4) lab-testing metrics
99.2%
Median tested purity
0
Zero-purity certs
Mean purity99.3%
Mean dose vs label-0.1%
Within 10% of label dose80%
Overdosed ≥ +7%20%
Underdosed ≤ −7%20%
COAs per testing lab
Every lab testing TB-500 (TB4) in the corpus.
Tested-purity distribution
Bins below 90% tested purity.
| 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% | 0 |
| 98–99% | 0 |
| 99–100% | 5 |
COAs over time
TB-500 (TB4) certificates published per month.
| Month | Certificates |
|---|---|
| 2025-05 | 1 |
| 2025-12 | 1 |
| 2026-01 | 2 |
| 2026-02 | 1 |
| 2026-05 | 1 |
Most-tested vendors
Vendors by TB-500 (TB4) certificate count.
See who tests most — unlock the vendor names with Pro.
Verified TB-500 (TB4) certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| GigaCompounds | 99.244% | — | Janoshik | 2026-05-25 | View COA → |
| Uther Peptide | 99.0% | +5.6% | Testides | 2026-02-15 | View COA → |
| SPB | 99.689% | +8.2% | Janoshik | 2026-01-28 | View COA → |
| (unknown) | — | -4.0% | Janoshik | 2026-01-13 | View COA → |
| (unknown) | 99.598% | +2.7% | Janoshik | 2025-12-23 | View COA → |
| anya@shsry.com.cn | 99.15% | -13.2% | Janoshik | 2025-05-07 | View COA → |