Every Glutathione certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 37 published Glutathione certs in our corpus.
37
Certificates
4
Independent labs
99.8%
Median tested purity
70%
Within 10% of label dose
Verified Glutathione certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| Peptide Gurus | 98.391% | +12.3% | Janoshik | 2026-05-19 | View COA → |
| Chameleon Peptides LLC | 96.996% | -5.0% | Janoshik | 2026-03-06 | View COA → |
| Panda Peptides LLC | 96.996% | -5.0% | Janoshik | 2026-03-06 | View COA → |
| www.uwa- biotech.com | 98.596% | +20.8% | Janoshik | 2026-02-26 | View COA → |
| Glutathione | 98.755% | — | Janoshik | 2026-02-11 | View COA → |
| Beibangan | 99.338% | — | Janoshik | 2026-01-05 | View COA → |
| Verified Peptides | 99.194% | +11.0% | Janoshik | 2025-12-31 | View COA → |
| Prizm Peptides | 99.098% | — | Janoshik | 2025-12-16 | View COA → |
| (unknown) | 99.309% | — | Janoshik | 2025-12-08 | View COA → |
| Eternal Peptides | 99.287% | +10.0% | Janoshik | 2025-12-03 | View COA → |
| Peptide Dynamics | 99.317% | +14.5% | Janoshik | 2025-11-26 | View COA → |
| www.innopetide.com | 99.168% | +12.7% | Janoshik | 2025-11-24 | View COA → |
| Unknown - drop-shipper pseudonym (alicepeptides@gmail.com) | 99.151% | +8.7% | Unknown | 2025-11-21 | View COA → |
| Tianjin Finder Chemical Tfc | 99.151% | +8.7% | Janoshik | 2025-11-21 | View COA → |
| Peptide Powerhouse | 99.749% | +2.5% | Janoshik | 2025-11-13 | View COA → |
| Transforma Peptides | 99.749% | +2.5% | Janoshik | 2025-11-13 | View COA → |
| Modern Research LLC | 99.792% | +0.6% | Janoshik | 2025-10-30 | View COA → |
| Purus Peptides | 99.914% | +1.0% | Janoshik | 2025-10-10 | View COA → |
| (unknown) | 99.874% | +0.5% | Janoshik | 2025-10-08 | View COA → |
| Edge Peptides | 99.849% | +2.6% | Janoshik | 2025-09-26 | View COA → |
| molipeptide.com | 99.933% | +1.1% | Janoshik | 2025-09-17 | View COA → |
| aisenpeptide.com | 99.933% | +1.1% | Janoshik | 2025-09-17 | View COA → |
| suppeptide.com | 99.933% | +1.1% | Janoshik | 2025-09-17 | View COA → |
| Peptira | 99.971% | +12.2% | Janoshik | 2025-08-29 | View COA → |
| Penguin Peptides | 99.927% | +12.4% | Janoshik | 2025-07-28 | View COA → |
| Injectify | 99.898% | +5.4% | Janoshik | 2025-07-08 | View COA → |
| Xcel Peptides | 99.97% | — | Janoshik | 2025-06-17 | View COA → |
| Sigma Audley | 99.927% | +6.0% | Janoshik | 2025-05-31 | View COA → |
| GENLABS | 99.9% | +6.7% | Janoshik | 2025-05-30 | View COA → |
| www.ywaozuo.com | 99.924% | +7.6% | Janoshik | 2025-05-28 | View COA → |
| www.qinglishangmao.com | 99.924% | +7.6% | Janoshik | 2025-05-28 | View COA → |
| Uther Peptide | 99.91% | +39.5% | Janoshik | 2025-05-06 | View COA → |
| Verified Peptides | 99.95% | — | Janoshik | 2025-04-28 | View COA → |
| Tci | 99.9% | +1.0% | Forever Young Pharmacy | 2024-12-19 | View COA → |
| Life Link Research | 99.848% | — | Janoshik | 2024-10-29 | View COA → |
| Qingdao Sigma Chemical | 99.975% | -12.1% | Janoshik | 2024-04-10 | View COA → |
| Tianjin Finder Chemical Tfc | 99.73% | +0.7% | Unknown | 2023-11-21 | View COA → |