Testing records
A COA shows the batch it names, not the lot shipped today. Vendors post certificates for specific batches; none of them shows which lot a vendor ships now, and a missing COA is shown as missing.
21 tracked offers for Oxytocin from 18 vendors: 14 have a public COA for the exact product and strength, 7 of them confirmed at the lab; 7 do not. The newest test date on file is Aug 6, 2026. Labs named: BioAnalytical Laboratory, Inc., BioRegen, Freedom Diagnostics, ILS Laboratories, Janoshik Analytical, Kovera Labs and 3 more.
Each row is one vendor's offer for one exact product. It shows the report behind the testing state: for a lab-verified product the newest report the lab confirmed, otherwise the newest report on file. A lab link appears only where the lab confirmed the report. Every archived report is stored with its SHA-256 hash.
| Vendor | Testing state | Lab | Tested | Purity | Batch |
|---|---|---|---|---|---|
| Oxytocin 2 mg vial6 vendors | |||||
| Panda Peptides | Lab-verified COA | Janoshik AnalyticalLab copy ↗ | Mar 6, 2026 | 86.094% | Unknown |
| Ascension Peptides | Product COA on file | Kovera Labs | May 15, 2026 | Not printed | 26-05260628 |
| Evolve Peptides | Product COA on file | MZ Biolabs | Jan 15, 2026 | Not printed | 4761025839 |
| Alpha Peps | Vendor tests other products | – | – | – | – |
| NuLife Peptides | Vendor tests other products | – | – | – | – |
| Orbitrex Peptides | Vendor tests other products | – | – | – | – |
| Oxytocin 5 mg vial7 vendors | |||||
| Rocky Mountain Compounds | Lab-verified COA | Freedom DiagnosticsLab copy ↗ | Aug 6, 2026 | 99.48% | N73126 |
| Premier Bio Labs | Lab-verified COA | ILS LaboratoriesLab copy ↗ | Jul 7, 2026 | 99% | OX01 |
| RUO | Lab-verified COA1 more report on file | Janoshik AnalyticalLab copy ↗ | Jan 20, 2026 | 99.01% | Unknown |
| Peptides 4 Research | Product COA on file | BioAnalytical Laboratory, Inc. | Feb 19, 2026 | 99.74% | 260212OX53 |
| Peptide Crafters | Product COA on file2 more reports on file | Vanguard Laboratory | Sep 24, 2025 | 98.83% | PC-J1-OXT |
| Evolve Peptides | Vendor tests other products | – | – | – | – |
| RIVN Peptides | Vendor tests other products | – | – | – | – |
| Oxytocin 10 mg vial8 vendors | |||||
| Ameano Peptides | Lab-verified COA | Janoshik AnalyticalLab copy ↗ | Feb 20, 2026 | 99.452% | OXY1002092026-01 |
| EZ Peptides | Lab-verified COA | Janoshik AnalyticalLab copy ↗ | Feb 20, 2026 | 99.463% | EZP-OXY1002092026-01 |
| Paramount Peptides | Lab-verified COA | Janoshik AnalyticalLab copy ↗ | Apr 29, 2025 | 94.767% | OXY102024 |
| Evolve Peptides | Product COA on file | MZ Biolabs | Jan 15, 2026 | Not printed | 4761025839 |
| Biolongevity Labs | Product COA on file2 more reports on file | BioRegen | Nov 19, 2025 | Not printed | 22-3-45952 |
| Core Peptides | Product COA on file2 more reports on file | Not named | Jun 19, 2024 | 99.3% | C74355 |
| Alpha Peps | Vendor tests other products | – | – | – | – |
| Glacier Aminos | Vendor tests other products | – | – | – | – |
Picks need a COA for the exact product and strength tested within 12 months; see the methodology.