When more than one lab tests the same batch, we line up their results side by side. When they match, it is the strongest signal you can get. When they do not, that is information too. Here is what these labs found — you decide.
That is a wide spread. When labs disagree this much on the same batch, no single certificate tells the whole story.
On the actual amount per vial, the labs were somewhat spread out (47.0 to 69.7 mg).
Heads up: our overall RV score may read these labs as close. That is because the score blends purity with other factors and compresses big differences. When you weigh this batch, the raw purity range above is what matters, not the smoothed score.
The two badges above are our blended RV-score view: whether the scores agree, and the overall quality tier. The plain read at the top leads with the labs actual purity numbers, and the full per-lab table is below.
Tirzepatide from MIX Peptides
vendor batch label "2025a512-09" · cross-tested by 3 independent labs
The blended RV scores land within 0.5 to 1.5 points of each other. The RV score mixes purity with other factors and can read as agreement even when raw purity does not — so weigh the raw purity range shown above.
Per-Lab Breakdown
| Lab | Task | Test Date | RV | Purity | Content | Testing | Label | Custody | CI | Method |
|---|---|---|---|---|---|---|---|---|---|---|
| BTLabs | #FNR-cucm3k9 | 4.12 | 75.00% | 53.2 mg | 0.4 | 7.0 | 4.3 | 10.0 | HPLC ~ | |
| BTLabs | #FNR-m9qb258 | 5.20 | 99.90% | 69.7 mg | 3.1 | 7.0 | 4.3 | 10.0 | HPLC ~ | |
| Janoshik | #84453 | 4.37 | 99.69% | 58.9 mg | 0.4 | 8.5 | 5.7 | 5.2 | not stated by lab | |
| Janoshik | #84454 | 4.06 | — | — | 0.0 | 7.0 | 4.8 | 10.0 | LAL | |
| Krause Analytical | #FNR-sjn4wkh | 5.04 | 97.9% | 60.3 mg | 2.7 | 7.0 | 4.3 | 10.0 | HPLC ~ | |
| Krause Analytical | #FNR-yhpgz64 | 4.12 | 82.37% | 47.0 mg | 0.4 | 7.0 | 4.3 | 10.0 | HPLC ~ |