Lab reports
PT-141 lab reports
Every batch of PT-141we’ve released, tested by an outside lab before it went on sale. The one shipping now is lot D85YB7: 99.95% pure by HPLC, tested by Freedom Diagnostics on 08 OCT 2026. The signed report is below — read it before you buy, not after.
The batch shipping now
- Lot number
- D85YB7
- Product
- PT-141 10mg
- Purity (HPLC)
- 99.95%
- Tested by
- Freedom Diagnostics
- Tested on
- 08 OCT 2026
- Net peptide content
- 8.04 mg
Contaminant screens
This report covers identity, purity and content. Screens the lab didn’t run aren’t listed — we never pad a certificate.
Every PT-141batch we’ve released
Anyone can show you one good report. Here are all 6, newest first, each with its own signed certificate. Nothing hidden, nothing cherry-picked.
PT-141 10mg
| Batch | Purity (HPLC) | Tested by | Tested on | Report |
|---|---|---|---|---|
| D85YB7Latest | 99.95% | Freedom Diagnostics | 08 OCT 2026 | Signed PDF |
| P4110-WM2608-001 | 99.83% | Accurate Lab Tests | 01 OCT 2026 | Signed PDF |
| Z7HUJW | 99.91% | Accurate Lab Tests | 20 AUG 2026 | Signed PDF |
| YGAFK7 | 99.91% | Freedom Diagnostics | 14 MAY 2026 | Signed PDF |
| PT1-12092025-J | 99.91% | Freedom Diagnostics | 01 MAY 2026 | Signed PDF |
| 300001 | 99.95% | Freedom Diagnostics | 20 FEB 2026 | Signed PDF |
How to read these numbers
The purity is the number the lab measured, not a floor. 99.95% means 99.95%, never “at least 99”. It comes from reversed-phase HPLC; identity is confirmed separately by mass spectrometry.
We don’t test our own product. Every lot goes to an independent, named lab — this one to Freedom Diagnostics. The certificate is published here before the buy button works, and the lot number on your vial is the one on the report.
If a batch misses its spec, it never ships. And if a vial you hold doesn’t match its report, test it at any lab you like and we refund every dollar. Holding a vial now? Look up its lot number in the registry.
What the published studies report about PT-141 — cited, numbered, and hedged to the evidence — is in PT-141 (Bremelanotide): What the Research Actually Shows.
The full walkthrough — matching the lot, reading the HPLC figure, confirming identity by mass spectrometry — is in How to Read a Peptide COA (and Spot a Bad One).
For research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure, or prevent any disease. Sold and handled strictly as a laboratory research chemical; by purchasing you confirm you are a qualified researcher.