Every LL-37 certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 22 published LL-37 certs in our corpus.
22
Certificates
2
Independent labs
99.5%
Median tested purity
79%
Within 10% of label dose
Verified LL-37 certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| Peptide Gurus | 99.316% | +11.9% | Janoshik | 2026-06-10 | View COA → |
| (unknown) | 99.85% | — | Janoshik | 2026-03-18 | View COA → |
| Hk Peptides | 99.539% | +0.8% | Janoshik | 2026-03-16 | View COA → |
| EZP | 99.503% | — | Janoshik | 2026-02-27 | View COA → |
| AMP | 99.503% | — | Janoshik | 2026-02-27 | View COA → |
| Nexaph | 99.503% | — | Janoshik | 2026-02-27 | View COA → |
| cs@ruo.bio | 99.036% | -2.8% | Janoshik | 2026-01-21 | View COA → |
| Qingdao Sigma Chemical | 99.153% | +2.2% | Janoshik | 2026-01-19 | View COA → |
| Hangzhou Youngpeptide Biotechnology Hyb | 99.4% | +3.4% | Janoshik | 2025-12-10 | View COA → |
| 303peptides.com | 99.728% | — | Janoshik | 2025-10-31 | View COA → |
| GENLABS | 99.229% | -0.6% | Janoshik | 2025-09-26 | View COA → |
| ilab pharma | 99.064% | -1.4% | Janoshik | 2025-09-09 | View COA → |
| Sigma Audley | 99.076% | +13.7% | Janoshik | 2025-09-04 | View COA → |
| Modern Research LLC | 99.217% | +14.0% | Janoshik | 2025-07-17 | View COA → |
| www.ywaozuo.com | 99.53% | +5.2% | Janoshik | 2025-05-28 | View COA → |
| Shanghai Sigma Audley Ssa | 98.795% | -2.4% | Janoshik | 2025-04-28 | View COA → |
| Sigma Audley | 99.438% | +9.4% | Janoshik | 2025-04-16 | View COA → |
| Tydes | 99.168% | — | Janoshik | 2025-03-28 | View COA → |
| Verified Peptides | 99.645% | — | Janoshik | 2025-01-15 | View COA → |
| Peptide Crafters | 99.728% | — | Janoshik | 2024-10-18 | View COA → |
| La Casa Del Peptides | 99.609% | -3.3% | Janoshik | 2024-06-10 | View COA → |
| Qingdao Sigma Chemical | 99.896% | -10.0% | Janoshik | 2023-12-04 | View COA → |