Retatrutide COA — Verified Certificate of Analysis Results
4362 independent third-party certificates of analysis for Retatrutide, from 9 labs across 467 vendors (2022-10-15 to 2026-06-23).
Every Retatrutide certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 4362 published Retatrutide certs in our corpus.
4362
Certificates
9
Independent labs
99.8%
Median tested purity
67%
Within 10% of label dose
↑ 34%
Overdosed (≥ +7% vs label)
↓ 15%
Underdosed (≤ −7% vs label)
96 of these Retatrutide certificates reported 0% of the labeled compound — a "sample does not contain" result. Always read the individual cert.
Verified Retatrutide certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| liliPetide Technology Co., Ltd. | 99.472% | +16.4% | Janoshik | 2026-06-23 | View COA → |
| Shanghai Erp Peptide Biotechnology | 99.9% | -3.9% | LabE | 2026-06-22 | View COA → |
| Oupeptide | 99.9% | -0.6% | LabE | 2026-06-22 | View COA → |
| Lumira | 0.0% | -100.0% | LabE | 2026-06-22 | View COA → |
| Lumira | 99.9% | -13.5% | LabE | 2026-06-22 | View COA → |
| Tsc Top Supplements China | 99.9% | -9.0% | LabE | 2026-06-22 | View COA → |
| Amino Lair | 99.9% | -6.7% | LabE | 2026-06-22 | View COA → |
| Top Peptide | 99.9% | -10.0% | LabE | 2026-06-22 | View COA → |
| Hangzhou Mandy Biotechnology | 99.9% | -8.7% | LabE | 2026-06-22 | View COA → |
| Ez Peptides | 99.4% | +1.7% | LabE | 2026-06-22 | View COA → |
| Henan Sahe Peptide | 0.0% | -100.0% | LabE | 2026-06-22 | View COA → |
| Zepeptide | 99.8% | -8.5% | LabG | 2026-06-17 | View COA → |
| Tianjin Ruiwang New Material Technology Co | 99.7% | -11.3% | LabG | 2026-06-17 | View COA → |
| Shanghai Erp Peptide Biotechnology | 99.9% | +16.0% | LabG | 2026-06-17 | View COA → |
| Shandong Aishi Biotechnology | 98.2% | -4.0% | LabG | 2026-06-17 | View COA → |
| Qing Li Peptide | 99.9% | +3.3% | LabG | 2026-06-17 | View COA → |
| Qing Li Peptide | 99.7% | +10.0% | LabG | 2026-06-17 | View COA → |
| Peptide Sciences | 99.8% | +10.8% | LabG | 2026-06-17 | View COA → |
| Lilipeptide | 99.9% | +3.5% | LabG | 2026-06-17 | View COA → |
| HM PEPTIDE | 99.7% | -3.0% | LabG | 2026-06-17 | View COA → |
| Elite Research Usa | 99.8% | -22.0% | LabG | 2026-06-17 | View COA → |
| Dankang Biohealth | 0.0% | -100.0% | LabG | 2026-06-17 | View COA → |
| Changsha Duole Technology | 0.0% | -100.0% | LabG | 2026-06-17 | View COA → |
| Shanghai Wibson Biotechnology Wbs | 99.9% | +2.0% | LabG | 2026-06-17 | View COA → |
| Peptislim | 99.8% | -2.0% | LabG | 2026-06-17 | View COA → |
| Henan Sahe Peptide | 99.7% | -2.0% | LabG | 2026-06-17 | View COA → |
| aura | 99.862% | +13.3% | Janoshik | 2026-06-17 | View COA → |
| Xi'an Taiye Chemical Co. | 99.524% | +10.9% | Janoshik | 2026-06-17 | View COA → |
| Yimei | 99.9% | -7.5% | LabE | 2026-06-16 | View COA → |
| Shanghai Erp Peptide Biotechnology | 99.8% | +6.5% | LabG | 2026-06-16 | View COA → |
| Shanghai Erp Peptide Biotechnology | 99.8% | +9.5% | LabG | 2026-06-16 | View COA → |
| Shanghai Baoju | 99.9% | -11.7% | LabE | 2026-06-16 | View COA → |
| Peptide Pole HongKong | 99.9% | -1.5% | LabE | 2026-06-16 | View COA → |
| Peptide Pole HongKong | 99.8% | +0.7% | LabG | 2026-06-16 | View COA → |
| Lumira | 99.9% | -15.3% | LabE | 2026-06-16 | View COA → |
| Lumira | 65.7% | -54.0% | LabE | 2026-06-16 | View COA → |
| Lilipeptide | 99.9% | -8.4% | LabE | 2026-06-16 | View COA → |
| Lilipeptide | 99.9% | -9.7% | LabE | 2026-06-16 | View COA → |
| Hk Peptides | 99.8% | +2.5% | LabG | 2026-06-16 | View COA → |
| HM PEPTIDE | 99.9% | -11.0% | LabE | 2026-06-16 | View COA → |
| HM PEPTIDE | 99.9% | +2.0% | LabE | 2026-06-16 | View COA → |
| Zhuoyue Biotechnology | 99.6% | -1.0% | LabG | 2026-06-16 | View COA → |
| Tsc Top Supplements China | 99.8% | -4.7% | LabG | 2026-06-16 | View COA → |
| Cocer Peptides | 0.0% | -100.0% | LabG | 2026-06-16 | View COA → |
| Xingtai Jiachuang Technology | 99.9% | -6.4% | LabE | 2026-06-16 | View COA → |
| Top Peptide | 99.9% | -15.5% | LabE | 2026-06-16 | View COA → |
| Huayi Biotechnology | 99.9% | -7.0% | LabE | 2026-06-16 | View COA → |
| Ehz Peptides | 99.7% | +3.0% | LabG | 2026-06-16 | View COA → |
| Xi'an Taiye Chemical Co. | 92.8% | -9.0% | LabE | 2026-06-16 | View COA → |
| Haikou Mingheng Technology | 0.0% | -100.0% | LabG | 2026-06-16 | View COA → |
| Champion Peptide | 99.9% | -12.6% | LabE | 2026-06-16 | View COA → |
| Yabang Peptide | 93.8% | -11.5% | LabE | 2026-06-16 | View COA → |
| Saiyan Med | 99.8% | +1.3% | LabG | 2026-06-16 | View COA → |
| Peptide Partners | 99.9% | -10.0% | LabE | 2026-06-16 | View COA → |
| Huaian Hanyou Peptide | 94.3% | -9.3% | LabE | 2026-06-16 | View COA → |
| Huaian Hanyou Peptide | 99.9% | -3.0% | LabE | 2026-06-16 | View COA → |
| Huaian Hanyou Peptide | 99.9% | -7.5% | LabE | 2026-06-16 | View COA → |
| Homopeptide | 99.7% | +9.0% | LabG | 2026-06-16 | View COA → |
| Guangzhou Jeep Biotechnology Jeep | 99.9% | -9.0% | LabE | 2026-06-16 | View COA → |
| Qihang Peptide | 99.876% | +1.5% | Janoshik | 2026-06-16 | View COA → |
Showing the 60 most recent of 4362 Retatrutide certificates.