Clenbuterol COA — Verified Certificate of Analysis Results
23 independent third-party certificates of analysis for Clenbuterol, from 1 labs across 19 vendors (2020-11-07 to 2026-02-23).
Every Clenbuterol certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 23 published Clenbuterol certs in our corpus.
23
Certificates
1
Independent labs
92.3%
Median tested purity
41%
Within 10% of label dose
↑ 41%
Overdosed (≥ +7% vs label)
↓ 27%
Underdosed (≤ −7% vs label)
Verified Clenbuterol certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| (unknown) | — | +0.0% | Janoshik | 2026-02-23 | View COA → |
| HEMI PHARMA | — | -16.1% | Janoshik | 2025-09-01 | View COA → |
| INTEX PHARMA | — | -16.1% | Janoshik | 2025-09-01 | View COA → |
| F40 Biotech | — | +154.8% | Janoshik | 2025-06-19 | View COA → |
| Puca | — | +408.1% | Janoshik | 2025-04-09 | View COA → |
| (unknown) | — | +21.1% | Janoshik | 2025-02-14 | View COA → |
| Keifei Pharma Co., Ltd | — | -12.0% | Janoshik | 2025-02-12 | View COA → |
| (unknown) | 92.33% | — | Janoshik | 2024-11-19 | View COA → |
| Quanta Pharmaceuticals | — | -8.4% | Janoshik | 2024-09-27 | View COA → |
| ExpressPCT | — | +0.6% | Janoshik | 2024-08-16 | View COA → |
| GENLABS | — | -10.6% | Janoshik | 2024-06-21 | View COA → |
| Sry Labs | — | +18.5% | Janoshik | 2024-05-16 | View COA → |
| PHARMAQO | — | +23.7% | Janoshik | 2024-05-02 | View COA → |
| MuscleCandy | — | -0.5% | Janoshik | 2024-04-26 | View COA → |
| Prime Pharmaceuticals | — | -2.7% | Janoshik | 2024-02-12 | View COA → |
| Pharmaqo Labs | — | +18.0% | Janoshik | 2024-02-01 | View COA → |
| ZEROX Pharmaceuticals | — | +2.2% | Janoshik | 2023-06-09 | View COA → |
| (unknown) | — | +0.0% | Janoshik | 2023-02-09 | View COA → |
| ROHM Labs | — | +70.2% | Janoshik | 2022-12-31 | View COA → |
| Apexa | — | +32.0% | Janoshik | 2022-10-13 | View COA → |
| DEUS MEDICAL | — | +18.4% | Janoshik | 2022-01-09 | View COA → |
| PARA PHARMA | — | +3.5% | Janoshik | 2021-01-09 | View COA → |
| PHARMAQO | — | -8.4% | Janoshik | 2020-11-07 | View COA → |