All peptides · Oxytocin · COAs
Oxytocin COA & lab test results
17 certificates of analysis published by 17 vendors, newest first.
7with readable numbers
99.3%median purity
102%median measured vs label
7testing labs
Labs: Accumark Labs, BioRegen, Bioviridian, Freedom Diagnostics, Janoshik, Kovera Labs, Lingke Bio-Detection.
| Vendor | Lab | Date | Label | Measured | Purity | |
|---|---|---|---|---|---|---|
| Elite Research USA | Freedom Diagnostics | 2026-09-09 | – | 1.91 mg | 99.59% | View |
| NuLife Peptides | Freedom Diagnostics | 2026-08-15 | 10 mg | 9.37 mg (94%) | 99.07% | View |
| Certified Peptides | – | 2026-07-31 | 10 mg | – | – | View (image) |
| Loti Labs | Bioviridian | 2026-07-27 | 2 mg | – | – | View (image) |
| Peptagon | Accumark Labs | 2026-07-24 | 10 mg | 10.89 mg (109%) | 99.035% | View |
| Glacier Aminos | Kovera Labs | 2026-07-15 | 10 mg | 10.73 mg (107%) | 99.676% | View |
| Paramount Peptides | Accumark Labs | 2026-07-07 | 10 mg | – | – | View (image) |
| Amino Usa | BioRegen | 2026-06-30 | 5 mg | 4.74 mg (95%) | 99.54% | View |
| Liberty Peptides | Accumark Labs | 2026-06-30 | 10 mg | 10.04 mg (100%) | 99.171% | View |
| LabRatscoCOA concerns | Lingke Bio-Detection | 2026-06-27 | – | – | – | View (image) |
| Swiss Chems | – | 2026-05-19 | – | – | – | View (image) |
| Qingdao Sigma Chemical QSC | – | 2026-05-18 | 10 mg | – | – | View (image) |
| Nuscience Peptides | Freedom Diagnostics | 2026-03-05 | 10 mg | – | – | View (image) |
| Pharma Grade Peptides | Janoshik | 2026-02-27 | 10 mg | – | – | View (image) |
| Forever Young PharmacyCOA concerns | – | – | 10 mg | 10.23 mg (102%) | 99.3% | View |
| Modern Aminos | – | – | 5 mg | – | – | View (image) |
| Peptides 4 Research | – | – | 5 mg | – | – | View (image) |
A vendor's COA shows one tested sample, not every batch. Numbers are filled in only where the document is readable text; image-only COAs are linked without numbers. Vendors banned for fake reports are excluded. Compare Oxytocin prices and lab-verified vendors.