Retatrutide COA — Verified Certificate of Analysis Results
9803 independent third-party certificates of analysis for Retatrutide, from 10 labs across 2379 vendors (2022-10-15 to 2026-07-15).
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 9803 published Retatrutide certs in our corpus.
Assay metrics
Retatrutide lab-testing metrics
99.8%
Median tested purity
98
Zero-purity certs
Mean purity98.7%
Mean dose vs label+6.8%
Endotoxin pass100%
Within 10% of label dose55%
Overdosed ≥ +7%51%
Underdosed ≤ −7%9%
COAs per testing lab
Top 12 of 19 labs by certificate count.
+ 7 more labs with fewer certificates.
Tested-purity distribution
Bins below 90% tested purity.
| Purity range | Certificates |
|---|---|
| 0–50% | 101 |
| 50–70% | 5 |
| 70–80% | 1 |
| 80–85% | 5 |
| 85–90% | 8 |
| 90–91% | 2 |
| 91–92% | 3 |
| 92–93% | 2 |
| 93–94% | 12 |
| 94–95% | 12 |
| 95–96% | 15 |
| 96–97% | 22 |
| 97–98% | 40 |
| 98–99% | 161 |
| 99–100% | 9409 |
COAs over time
Retatrutide certificates published per month.
| Month | Certificates |
|---|---|
| 2022-10 | 1 |
| 2023-09 | 8 |
| 2023-10 | 1 |
| 2023-11 | 8 |
| 2023-12 | 2 |
| 2024-01 | 1 |
| 2024-02 | 4 |
| 2024-03 | 2 |
| 2024-04 | 1 |
| 2024-05 | 11 |
| 2024-06 | 7 |
| 2024-07 | 6 |
| 2024-08 | 9 |
| 2024-09 | 13 |
| 2024-10 | 7 |
| 2024-11 | 21 |
| 2024-12 | 15 |
| 2025-01 | 38 |
| 2025-02 | 79 |
| 2025-03 | 76 |
| 2025-04 | 87 |
| 2025-05 | 136 |
| 2025-06 | 157 |
| 2025-07 | 199 |
| 2025-08 | 335 |
| 2025-09 | 435 |
| 2025-10 | 544 |
| 2025-11 | 609 |
| 2025-12 | 678 |
| 2026-01 | 918 |
| 2026-02 | 970 |
| 2026-03 | 664 |
| 2026-04 | 953 |
| 2026-05 | 1089 |
| 2026-06 | 1600 |
| 2026-07 | 119 |
Most-tested vendors
Top 10 of 15 vendors by Retatrutide certificate count.
See who tests most — unlock the vendor names with Pro.
+ 5 more vendors with fewer certificates.
98 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 | |
|---|---|---|---|---|---|
| www.hpebio.com | 99.878% | +5.9% | Janoshik | 2026-07-15 | View COA → |
| ariaiec@gmail.com | 99.575% | +18.3% | Janoshik | 2026-07-13 | View COA → |
| ktswpeptide.com | 99.772% | -2.6% | Janoshik | 2026-07-10 | View COA → |
| WhatsApp：+852 6408 7515 WhatsApp:+852 6558 9024 | 99.772% | -2.6% | Janoshik | 2026-07-10 | View COA → |
| www.huahepeptide.com | 99.772% | -2.6% | Janoshik | 2026-07-10 | View COA → |
| https://www.lkpeptech.com/ | 99.252% | — | Janoshik | 2026-07-09 | View COA → |
| Mix Peptides | 99.785% | +10.2% | Janoshik | 2026-07-09 | View COA → |
| Whatsapp:①+44 7384547562 ②+852 6255 5147 | 99.691% | +7.7% | Janoshik | 2026-07-08 | View COA → |
| MPS | 99.82% | +8.3% | Janoshik | 2026-07-08 | View COA → |
| WhatsApp:+852 6558 9024 | 99.302% | +78.6% | Janoshik | 2026-07-04 | View COA → |
| peptide bro's | 99.86% | +23.2% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Wasatch Research Labs | 99.98% | +5.4% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Vixenova Labs | 99.85% | +4.1% | Freedom Diagnostics | 2026-07-03 | View COA → |
| The Kraken pep | 99.7% | +11.2% | Freedom Diagnostics | 2026-07-03 | View COA → |
| The Kraken pep | 99.91% | -4.9% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Simple Tides | 99.65% | +7.0% | Freedom Diagnostics | 2026-07-03 | View COA → |
| RETABOLIC.US | 99.43% | -7.4% | Freedom Diagnostics | 2026-07-03 | View COA → |
| RETABOLIC.US | 99.91% | -6.4% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Purity Trace | 99.9% | +22.0% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Pure Peptide Labs LLC | 99.83% | +11.6% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Project Amino | 99.91% | +14.4% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Powercell labs | 99.91% | +4.4% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Nulevelpeptides.com | 99.9% | +2.3% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Lisa Levy Living | 99.75% | +8.6% | Freedom Diagnostics | 2026-07-03 | View COA → |
| David Hanson | 99.94% | — | Freedom Diagnostics | 2026-07-03 | View COA → |
| AxonChems LLC | 99.87% | +16.2% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Arcadian Metabolics | 99.91% | +25.8% | Freedom Diagnostics | 2026-07-03 | View COA → |
| Arcadian Metabolics | 99.69% | +17.8% | Freedom Diagnostics | 2026-07-03 | View COA → |
| GYC | 99.178% | — | G | 2026-07-02 | View COA → |
| — | 99.761% | — | Janoshik | 2026-07-02 | View COA → |
| Royal Peptides | 99.509% | +8.1% | Janoshik | 2026-07-02 | View COA → |
| Mix Peptides | 99.733% | +11.5% | Janoshik | 2026-07-02 | View COA → |
| Wolverine Peptides | 99.46% | +22.9% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Treasure Coast Peptides | 99.92% | +8.2% | Freedom Diagnostics | 2026-07-02 | View COA → |
| TC Supply | 99.87% | +15.9% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Sweets & Treats | 99.94% | — | Freedom Diagnostics | 2026-07-02 | View COA → |
| Star Nutrasciences Inc. | 99.54% | -5.3% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Star Nutrasciences Inc. | 99.94% | +2.3% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Star Nutrasciences Inc. | 99.96% | -2.1% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Smooth N' Go, LLC | 99.89% | +6.9% | Freedom Diagnostics | 2026-07-02 | View COA → |
| STACKHAUS RESEARCH | 99.91% | -5.0% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Rocky Top Wellness | 99.92% | +2.7% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Research 1 Peptides | 99.78% | -1.0% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Peptriva Research | 99.77% | +24.9% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Peptaris | 99.96% | +19.4% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Peptaris | 99.99% | +7.3% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Milo's | 99.98% | +15.1% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Michael Day | 99.89% | +2.7% | Freedom Diagnostics | 2026-07-02 | View COA → |
| MG Peps | 99.35% | +12.2% | Freedom Diagnostics | 2026-07-02 | View COA → |
| LSM Peps | 99.43% | +29.6% | Freedom Diagnostics | 2026-07-02 | View COA → |
| KLOWLA | 99.9% | — | Freedom Diagnostics | 2026-07-02 | View COA → |
| Grit & Grace | 99.95% | +8.9% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Grit & Grace | 99.97% | +12.5% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Grit & Grace | 99.96% | -1.6% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Grit & Grace | 99.96% | +2.5% | Freedom Diagnostics | 2026-07-02 | View COA → |
| GZ Peptides | 99.92% | +18.1% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Full Scale Peptides | 99.95% | +13.8% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Fusion Testing Lab | 99.93% | +29.7% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Expert Peptides USA | 99.97% | +9.8% | Freedom Diagnostics | 2026-07-02 | View COA → |
| Expert Peptides USA | 99.92% | +9.8% | Freedom Diagnostics | 2026-07-02 | View COA → |
Showing the 60 most recent of 9803 Retatrutide certificates.