All peptides · Thymalin · COAs
Thymalin COA & lab test results
7 certificates of analysis published by 7 vendors, newest first.
4with readable numbers
99.53%median purity
116%median measured vs label
5testing labs
Labs: ARL Bio Pharma, BioRegen, Freedom Diagnostics, Janoshik, Qorix Labs (Tianjin).
| Vendor | Lab | Date | Label | Measured | Purity | |
|---|---|---|---|---|---|---|
| Ion Peptide | Freedom Diagnostics | 2026-09-05 | 10 mg | 9.43 mg (94%) | 99.53% | View |
| Shanghai Leader Peptide BiotechnologyCOA concerns | Qorix Labs (Tianjin) | 2026-09-05 | 10 mg | – | 99.22% | View |
| Qingdao Sigma Chemical QSC | – | 2026-07-29 | 5 mg | – | – | View (image) |
| CertaPeptides | Janoshik | 2026-07-24 | 10 mg | 11.56 mg (116%) | 99.285% | View |
| Amino Usa | BioRegen | 2026-07-16 | – | – | 99.56% | View |
| Forever Young PharmacyCOA concerns | ARL Bio Pharma | 2024-06-04 | 10 mg | – | – | View (image) |
| BioPrecise LLCCOA concerns | – | – | – | – | – | 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 Thymalin prices and lab-verified vendors.