Selank COA — Verified Certificate of Analysis Results
114 independent third-party certificates of analysis for Selank, from 6 labs across 81 vendors (2023-04-17 to 2026-05-14).
Every Selank certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 114 published Selank certs in our corpus.
114
Certificates
6
Independent labs
99.8%
Median tested purity
24%
Within 10% of label dose
↑ 85%
Overdosed (≥ +7% vs label)
↓ 4%
Underdosed (≤ −7% vs label)
Verified Selank certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| Longevity Pro Labs | 99.026% | — | Janoshik | 2026-05-14 | View COA → |
| Shanxi Qianyecao Biotech Qyc | 99.22% | +1.3% | Janoshik | 2026-04-22 | View COA → |
| Amino Lair | 99.84% | +11.0% | Unknown | 2026-04-22 | View COA → |
| Kerui Peptide HongKong Co., Ltd | 99.685% | -3.9% | Janoshik | 2026-04-21 | View COA → |
| Anonymous | 99.807% | +25.1% | Janoshik | 2026-04-15 | View COA → |
| MMAEK251 | 99.882% | +13.7% | Janoshik | 2026-04-14 | View COA → |
| JP | 99.877% | — | Janoshik | 2026-04-10 | View COA → |
| (unknown) | 99.891% | +25.2% | Janoshik | 2026-04-10 | View COA → |
| (unknown) | 99.788% | +15.6% | Janoshik | 2026-03-31 | View COA → |
| (unknown) | 99.793% | +15.5% | Janoshik | 2026-03-17 | View COA → |
| sahepeptides.com | 99.793% | +15.5% | Janoshik | 2026-03-17 | View COA → |
| Chameleon Peptides LLC | 99.807% | +16.6% | Janoshik | 2026-03-06 | View COA → |
| Panda Peptides LLC | 99.807% | +16.6% | Janoshik | 2026-03-06 | View COA → |
| Peptide Gurus | 99.896% | +14.1% | Janoshik | 2026-02-26 | View COA → |
| EZP | 99.907% | +18.2% | Janoshik | 2026-02-16 | View COA → |
| Allen Biotechnology Co Abc | 99.522% | — | Janoshik | 2026-02-16 | View COA → |
| Allen Biotechnology Co Abc | 99.522% | +16.1% | Janoshik | 2026-02-16 | View COA → |
| https://newwavepeptides.co.uk | 99.897% | +12.7% | Janoshik | 2026-02-13 | View COA → |
| Hk Peptides | 99.861% | +13.5% | Janoshik | 2026-02-13 | View COA → |
| PeptiLab | 99.609% | +8.6% | Janoshik | 2026-02-06 | View COA → |
| Homopeptide | 99.745% | +14.4% | Unknown | 2026-01-30 | View COA → |
| Homopeptide | 99.745% | +14.4% | Janoshik | 2026-01-30 | View COA → |
| (unknown) | 99.604% | +19.8% | Janoshik | 2026-01-29 | View COA → |
| GYC | 99.78% | — | Janoshik | 2026-01-29 | View COA → |
| Bioprep LLC | 99.859% | -34.8% | Janoshik | 2026-01-27 | View COA → |
| cs@ruo.bio | 99.72% | +7.2% | Janoshik | 2026-01-21 | View COA → |
| Peptide hubs | 99.838% | +27.2% | Janoshik | 2026-01-12 | View COA → |
| Shenzhen Maide Technology | 99.85% | +5.2% | Janoshik | 2026-01-09 | View COA → |
| Velora Research | 99.594% | +14.8% | Janoshik | 2026-01-05 | View COA → |
| aura | 99.678% | +11.5% | Janoshik | 2025-12-22 | View COA → |
| Xcel Peptides | 99.595% | +38.0% | Janoshik | 2025-12-17 | View COA → |
| MKM Peptides | 99.655% | +10.2% | Janoshik | 2025-12-12 | View COA → |
| HM PEPTIDE | 99.875% | +18.3% | Janoshik | 2025-12-12 | View COA → |
| 303peptides.com | 99.298% | — | Janoshik | 2025-12-11 | View COA → |
| Hangzhou Youngpeptide Biotechnology Hyb | 99.902% | +23.8% | Janoshik | 2025-12-10 | View COA → |
| Volk | 99.468% | +14.7% | Janoshik | 2025-12-10 | View COA → |
| — | 99.157% | +27.9% | Janoshik | 2025-12-08 | View COA → |
| Sin City Science | 99.563% | +24.4% | Janoshik | 2025-12-03 | View COA → |
| Growth Guys Canada | 99.883% | — | Janoshik | 2025-11-27 | View COA → |
| Peptide Dynamics | 99.074% | +24.3% | Janoshik | 2025-11-26 | View COA → |
| zlzpeptide.com | 99.371% | +14.2% | Janoshik | 2025-11-20 | View COA → |
| cellpept.eu | 99.797% | +14.2% | Janoshik | 2025-11-14 | View COA → |
| Peptide Powerhouse | 99.841% | +13.2% | Janoshik | 2025-11-14 | View COA → |
| Transforma Peptides | 99.841% | +13.2% | Janoshik | 2025-11-14 | View COA → |
| Guangzhou Jeep Biotechnology Jeep | 99.918% | +14.1% | Janoshik | 2025-11-11 | View COA → |
| Qingdao Sigma Chemical | 99.682% | +21.0% | Janoshik | 2025-11-07 | View COA → |
| Kensingtonlabs.co.uk | 99.274% | +27.0% | Janoshik | 2025-11-04 | View COA → |
| Verified Peptides | 99.87% | — | Janoshik | 2025-10-24 | View COA → |
| Andy Peps Studio | 99.825% | +10.6% | Janoshik | 2025-10-22 | View COA → |
| Hk Peptides | 99.491% | +10.5% | Janoshik | 2025-10-21 | View COA → |
| Jett Labs | 99.698% | +26.6% | Unknown | 2025-10-18 | View COA → |
| COMPOUND PURITY | 99.777% | +32.2% | Janoshik | 2025-10-17 | View COA → |
| Purus Peptides | 99.465% | +14.7% | Janoshik | 2025-10-09 | View COA → |
| Zlz Peptide | 99.742% | +4.9% | Janoshik | 2025-10-07 | View COA → |
| cocerpeptides.com | 99.466% | +34.5% | Janoshik | 2025-10-03 | View COA → |
| Uther Peptide | 99.909% | +41.7% | Janoshik | 2025-10-03 | View COA → |
| PGB | 99.802% | +24.9% | Janoshik | 2025-10-02 | View COA → |
| PGB | 99.788% | +25.2% | Janoshik | 2025-10-02 | View COA → |
| www.astersteroids.com | 99.164% | — | Janoshik | 2025-09-26 | View COA → |
| Anonymous | 99.844% | -0.2% | Janoshik | 2025-09-25 | View COA → |
Showing the 60 most recent of 114 Selank certificates.