Retatrutide(GLP-1, GIP, and GCGR agonist)
We've tested 1866 samples of Retatrutide sourced from 134 vendors on #N/A. Purity varies from 62.38% to 100.00%, and quantity can diverge by up to +/-10000% vs advertised value.
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Vendors
Most recent Retatrutide tests
Samples are tested in commercial labs
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Vendor | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 18 Feb 2026 | M-Peptides | View | 15mg | 9.08mg | -39.5% | 99.90% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 18 Feb 2026 | Uther | View | 30mg | 17mg | -43.3% | 99.90% | RE30-1128 | White Label / Green Crimp / Red Cap | Lab E | Public | |
| 18 Feb 2026 | Qing Li Peptide | View | 30mg | 33.3mg | +11.0% | 99.90% | 900-30 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 18 Feb 2026 | Shanghai Baoju | View | 15mg | 15.8mg | +5.3% | 99.90% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 18 Feb 2026 | Yongkang Nuoao Trading Co | View | 20mg | 33.7mg | +68.5% | 99.68% | 12/5/2025 | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 18 Feb 2026 | Bfflist AMO | View | 30mg | 29.6mg | -1.3% | 99.90% | 309018-11/22/2025 | Silver Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 18 Feb 2026 | PeptiSlim | View | 30mg | 28.3mg | -5.7% | 99.90% | Dec2, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
Corrections
- 17 Nov 2025: Peptide Sciences
- Test results for sample 3tbve3d were published from 31 Oct to 17 Nov 2025, but did not belong to Peptide Sciences: the sample was misidentified, and re-attributed to the correct vendor.
- 14 Nov 2025: Peptide Sciences
- Test results for sample 87u9z6r were published from 8 to 14 Nov 2025, but did not belong to Peptide Sciences: the sample was identified as a counterfeit. They were removed from publishing.
- 10 Nov 2025: PeptiSlim
- The sample was misslabaled by the requester, actual quantity for this sample is 60mg, Quantity has been edited with correct value (previus value was 10 mg)
- 10 Nov 2025: PeptiSlim
- The sample was misslabaled by the requester, actual quantity for this sample is 10mg, Quantity has been edited with correct value (previus value was 60 mg)
- 5 Nov 2025: Wuhan Wansheng Biotechnology
- These were remade and reanalyzed by Lab G. They traced the discrepancy to a likely human error during preparation.
- 5 Nov 2025: Bfflist AMO
- These were remade and reanalyzed by Lab G. They traced the discrepancy to a likely human error during preparation.
- 5 Nov 2025: LiliPeptide
- Lab G mistakenly entered 92 mg instead of 9.2 mg.
- 29 Aug 2025: Peptide Sciences
- Batch identifier for Peptide Sciences Retatrutide 6mg vial tested 30 June was missing. Test score changed from 6.3 to 8.3.
- 15 Apr 2025: Polaris Peptides
- Lab B test 19 Feb 2025: updated quantity following the identification of a clerical error, value was erroneously listed as 6.25mg. Lab issued an updated test certificate on 7 Apr 2025.
- 15 Apr 2025: Limitless Life Nootropics
- Lab B test 19 Feb 2025: updated quantity following the identification of a clerical error, value was erroneously listed as 9.27mg. Lab issued an updated test certificate on 7 Apr 2025.
- 6 Apr 2025: Forever Young Pharmacy
- Lab A test 14 Feb 2025: updated compound identification, removed purity and quantity values. Error in analysis by lab, compound was incorrectly identified as Retatrutide. Lab issued an updated test certificate.
- 6 Apr 2025: Peptide Sciences
- Lab A test 14 Feb 2025: updated compound identification, removed purity and quantity values. Error in analysis by Lab, compound was incorrectly identified as Retatrutide. Lab issued an updated test certificate.

















































