Retatrutide(GLP-1, GIP, and GCGR agonist)
We've tested 2686 samples of Retatrutide sourced from 167 vendors between 17 Dec 2024 and 6 May 2026. Purity typically ranges from 98.70% to 99.95% (5th-95th percentile), and quantity typically diverges by up to +/-45% vs advertised value (95th percentile).
Take Action
Suggest A Vendor
Test Retatrutide
Mail in a sample for free testing (US only, terms apply)
Vendors
| Tests | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Vendor | Rating | Count | Avg | Min | Max | Oldest | Most Recent | ||
 | 7 | 24 Jul 2025 | 30 Apr 2026 | ||||||
 | 6 | 17 Nov 2025 | 5 May 2026 | ||||||
 | 6 | 6 May 2025 | 4 Mar 2026 | ||||||
 | 6 | 27 Feb 2025 | 19 Mar 2026 | ||||||
 | 20 | 17 Jul 2025 | 28 Apr 2026 | ||||||
 | 6 | 17 Dec 2024 | 16 Dec 2025 | ||||||
| 11 | 6 Dec 2025 | 27 Apr 2026 | ||||||
| 10 | 17 Nov 2025 | 19 Mar 2026 | ||||||
| 10 | 14 Nov 2025 | 28 Apr 2026 | ||||||
| 9 | 14 Nov 2025 | 27 Apr 2026 | ||||||
 | 8 | 14 Jan 2025 | 23 Apr 2026 | ||||||
| 9 | 26 Jan 2026 | 18 Mar 2026 | ||||||
| 7 | 11 Aug 2025 | 3 Mar 2026 | ||||||
 | 8 | 22 Apr 2025 | 13 Feb 2026 | ||||||
| 9 | 16 Dec 2025 | 2 Apr 2026 | ||||||
| 8 | 21 Aug 2025 | 28 Apr 2026 | ||||||
| 2 | 11 Feb 2026 | 11 Feb 2026 | ||||||
| 2 | 16 Dec 2025 | 16 Dec 2025 | ||||||
| 2 | 2 Dec 2025 | 2 Dec 2025 | ||||||
 | 4 | 6 May 2025 | 21 May 2025 | ||||||
| 2 | 3 Mar 2026 | 3 Mar 2026 | ||||||
| 2 | 5 Mar 2026 | 5 Mar 2026 | ||||||
| 3 | 30 Jun 2025 | 7 Jan 2026 | ||||||
| 4 | 22 Feb 2026 | 26 Apr 2026 | ||||||
| 4 | 11 Feb 2026 | 3 Apr 2026 | ||||||
| 2 | 10 Jun 2025 | 17 Oct 2025 | ||||||
 | 4 | 9 Feb 2026 | 16 Mar 2026 | ||||||
| 4 | 20 Jun 2025 | 12 Aug 2025 | ||||||
 | 5 | 16 Mar 2025 | 6 May 2025 | ||||||
| 4 | 1 Sep 2025 | 4 Sep 2025 | ||||||
 | 12 | 17 Dec 2024 | 23 Apr 2026 | ||||||
 | 14 | 7 Oct 2025 | 28 Apr 2026 | ||||||
| 6 | 10 Sep 2025 | 19 Mar 2026 | ||||||
| 8 | 25 Jul 2025 | 3 Mar 2026 | ||||||
| 16 | 16 Dec 2025 | 28 Apr 2026 | ||||||
| 7 | 4 Sep 2025 | 28 Apr 2026 | ||||||
| 7 | 3 Oct 2025 | 4 Mar 2026 | ||||||
| 12 | 4 Aug 2025 | 21 Apr 2026 | ||||||
| 8 | 5 Aug 2025 | 22 Feb 2026 | ||||||
| 47 | 30 Jun 2025 | 21 Apr 2026 | ||||||
 | 8 | 14 Jan 2025 | 25 Mar 2026 | ||||||
| 6 | 11 Dec 2025 | 7 Jan 2026 | ||||||
 | 13 | 4 Sep 2025 | 28 Apr 2026 | ||||||
| 18 | 16 Dec 2025 | 5 May 2026 | ||||||
| 12 | 4 Aug 2025 | 26 Feb 2026 | ||||||
| 10 | 17 Nov 2025 | 28 Apr 2026 | ||||||
| 17 | 30 Sep 2025 | 30 Apr 2026 | ||||||
| 10 | 21 Aug 2025 | 23 Apr 2026 | ||||||
| 6 | 11 Aug 2025 | 22 Feb 2026 | ||||||
| 11 | 13 Dec 2025 | 6 Mar 2026 | ||||||
| 7 | 17 Nov 2025 | 20 Feb 2026 | ||||||
 | 2 | 7 May 2025 | 7 May 2025 | ||||||
 | 5 | 13 Feb 2025 | 27 Apr 2026 | ||||||
 | 4 | 13 Feb 2025 | 19 Feb 2025 | ||||||
 | 5 | 7 May 2025 | 25 Mar 2026 | ||||||
 | 11 | 9 Jun 2025 | 22 Feb 2026 | ||||||
| 7 | 7 Jan 2026 | 3 Mar 2026 | ||||||
| 7 | 7 Jan 2026 | 3 Mar 2026 | ||||||
 | 6 | 22 Apr 2025 | 7 May 2025 | ||||||
 | 17 | 24 Oct 2025 | 28 Apr 2026 | ||||||
| 25 | 13 Dec 2025 | 28 Apr 2026 | ||||||
| 9 | 3 Aug 2025 | 19 Mar 2026 | ||||||
 | 7 | 30 Apr 2025 | 7 Jan 2026 | ||||||
| 6 | 4 Aug 2025 | 6 Mar 2026 | ||||||
| 8 | 21 Oct 2025 | 18 Mar 2026 | ||||||
| 7 | 16 Jul 2025 | 3 Mar 2026 | ||||||
 | 8 | 3 Jun 2025 | 23 Apr 2026 | ||||||
 | 7 | 25 Apr 2025 | 5 May 2026 | ||||||
| 10 | 13 Oct 2025 | 28 Apr 2026 | ||||||
| 15 | 3 Jul 2025 | 28 Apr 2026 | ||||||
| 26 | 20 Jun 2025 | 6 Mar 2026 | ||||||
 | 14 | 16 Mar 2025 | 13 Mar 2026 | ||||||
| 8 | 19 Jan 2026 | 28 Apr 2026 | ||||||
 | 15 | 17 Dec 2024 | 20 Mar 2026 | ||||||
| 11 | 4 Jul 2025 | 28 Apr 2026 | ||||||
| 16 | 1 Sep 2025 | 28 Apr 2026 | ||||||
| 23 | 1 Sep 2025 | 7 Mar 2026 | ||||||
| 32 | 11 Jun 2025 | 23 Apr 2026 | ||||||
| 7 | 12 Aug 2025 | 18 Mar 2026 | ||||||
| 27 | 29 Oct 2025 | 28 Apr 2026 | ||||||
 | 11 | 31 Mar 2025 | 23 Jul 2025 | ||||||
| 11 | 17 Nov 2025 | 30 Apr 2026 | ||||||
 | 6 | 31 Mar 2025 | 7 Jan 2026 | ||||||
| 12 | 4 Aug 2025 | 11 Feb 2026 | ||||||
 | 12 | 14 Jan 2025 | 6 Dec 2025 | ||||||
| 6 | 7 Jan 2026 | 25 Mar 2026 | ||||||
| 6 | 15 Jan 2026 | 18 Feb 2026 | ||||||
| 8 | 13 Oct 2025 | 20 Mar 2026 | ||||||
| 9 | 23 Oct 2025 | 3 Mar 2026 | ||||||
| 7 | 11 Aug 2025 | 28 Apr 2026 | ||||||
| 18 | 11 Aug 2025 | 1 Mar 2026 | ||||||
 | 2 | 14 Feb 2025 | 19 Feb 2025 | ||||||
| 4 | 4 Aug 2025 | 7 Mar 2026 | ||||||
 | 5 | 31 Mar 2025 | 16 May 2025 | ||||||
 | 3 | 16 May 2025 | 23 Jul 2025 | ||||||
 | 4 | 16 May 2025 | 23 Jul 2025 | ||||||
 | 2 | 14 Jan 2025 | 23 Jan 2025 | ||||||
| 6 | 21 Aug 2025 | 10 Dec 2025 | ||||||
| 7 | 17 Nov 2025 | 20 Mar 2026 | ||||||
 | 26 | 17 Dec 2024 | 7 Jan 2026 | ||||||
| 8 | 18 Sep 2025 | 28 Apr 2026 | ||||||
| 56 | 3 Jun 2025 | 30 Apr 2026 | ||||||
 | 9 | 17 Dec 2024 | 30 Apr 2025 | ||||||
| 23 | 20 Jun 2025 | 13 Mar 2026 | ||||||
| 21 | 27 Jun 2025 | 23 Apr 2026 | ||||||
| 6 | 2 Dec 2025 | 15 Feb 2026 | ||||||
| 17 | 25 Jun 2025 | 19 Mar 2026 | ||||||
| 10 | 23 Nov 2025 | 5 May 2026 | ||||||
| 11 | 11 Jun 2025 | 11 Dec 2025 | ||||||
| 11 | 23 Oct 2025 | 17 Mar 2026 | ||||||
| 8 | 21 Aug 2025 | 30 Apr 2026 | ||||||
 | 2 | 20 May 2025 | 23 Oct 2025 | ||||||
 | 5 | 24 Apr 2025 | 21 May 2025 | ||||||
 | 5 | 27 Feb 2025 | 20 Mar 2025 | ||||||
| 2 | 3 Jul 2025 | 6 Mar 2026 | ||||||
| 25 | 23 Oct 2025 | 28 Apr 2026 | ||||||
 | 111 | 9 Jun 2025 | 5 May 2026 | ||||||
| 13 | 16 Jul 2025 | 13 Apr 2026 | ||||||
| 6 | 31 Aug 2025 | 3 Mar 2026 | ||||||
| 16 | 25 Nov 2025 | 5 May 2026 | ||||||
| 29 | 4 Nov 2025 | 13 Mar 2026 | ||||||
| 33 | 4 Aug 2025 | 25 Mar 2026 | ||||||
| 22 | 1 Jan 2026 | 30 Apr 2026 | ||||||
| 9 | 5 Oct 2025 | 23 Apr 2026 | ||||||
| 7 | 26 Jan 2026 | 28 Apr 2026 | ||||||
| 6 | 24 Jul 2025 | 6 Mar 2026 | ||||||
| 23 | 3 Oct 2025 | 28 Apr 2026 | ||||||
| 19 | 29 Dec 2025 | 28 Apr 2026 | ||||||
| 21 | 6 Nov 2025 | 19 Mar 2026 | ||||||
 | 30 | 20 Apr 2025 | 25 Mar 2026 | ||||||
 | 8 | 17 Dec 2024 | 31 Mar 2025 | ||||||
| 19 | 24 Oct 2025 | 30 Apr 2026 | ||||||
 | 6 | 11 Aug 2025 | 6 Mar 2026 | ||||||
| 124 | 11 Jun 2025 | 5 May 2026 | ||||||
 | 87 | 11 Jun 2025 | 28 Apr 2026 | ||||||
 | 7 | 16 Mar 2025 | 3 Jul 2025 | ||||||
 | 40 | 17 Dec 2024 | 28 Apr 2026 | ||||||
| 67 | 20 Jun 2025 | 28 Apr 2026 | ||||||
| 39 | 11 Aug 2025 | 30 Apr 2026 | ||||||
 | 58 | 9 Jun 2025 | 30 Apr 2026 | ||||||
| 24 | 11 Dec 2025 | 30 Apr 2026 | ||||||
 | 13 | 11 Aug 2025 | 10 Mar 2026 | ||||||
| 6 | 1 Sep 2025 | 23 Oct 2025 | ||||||
| 90 | 20 Jun 2025 | 28 Apr 2026 | ||||||
| 8 | 10 Sep 2025 | 22 Feb 2026 | ||||||
| 124 | 4 Aug 2025 | 28 Apr 2026 | ||||||
| 49 | 24 Jul 2025 | 28 Apr 2026 | ||||||
| 8 | 26 Jan 2026 | 18 Mar 2026 | ||||||
| 49 | 20 Jun 2025 | 30 Apr 2026 | ||||||
| 9 | 5 Aug 2025 | 28 Apr 2026 | ||||||
 | 41 | 11 Jun 2025 | 10 Mar 2026 | ||||||
 | 8 | 3 Jun 2025 | 28 Apr 2026 | ||||||
| 9 | 7 Jan 2026 | 29 Mar 2026 | ||||||
| 57 | 4 Sep 2025 | 28 Apr 2026 | ||||||
| 13 | 24 Jul 2025 | 28 Apr 2026 | ||||||
 | 4 | 13 Feb 2025 | 19 Feb 2025 | ||||||
| 3 | 11 Jun 2025 | 13 Oct 2025 | ||||||
| 5 | 20 Jun 2025 | 6 Mar 2026 | ||||||
| 18 | 5 Oct 2025 | 18 Mar 2026 | ||||||
| 14 | 17 Oct 2025 | 18 Mar 2026 | ||||||
| 61 | 4 Aug 2025 | 23 Apr 2026 | ||||||
| 82 | 9 Jun 2025 | 5 May 2026 | ||||||
| 1 | 20 Jun 2025 | 20 Jun 2025 | ||||||
 | 1 | 6 May 2025 | 6 May 2025 | ||||||
| 1 | 3 Jul 2025 | 3 Jul 2025 | ||||||
| 1 | 3 Jul 2025 | 3 Jul 2025 | ||||||
Most recent Retatrutide tests
Samples are tested in commercial labs
| Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Vendor | Certificate | Test Score | Label | Batch | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 5 May 2026 | Zenith Jove Peptide ZJ | View | 10mg | (no batch claim) | 9.81mg | -1.9% | 99.90% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 May 2026 | ZePeptide | View | 30mg | 29.6mg | 25.7mg | -13.0% | 99.90% | RT30/2025-1011 | Gray Label / Silver Crimp / White Cap | Lab E | Public | |
| 5 May 2026 | Zenith Jove Peptide ZJ | View | 10mg | (no batch claim) | 10.4mg | +4.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 May 2026 | HK Peptides | View | 10mg | (no batch claim) | 10.2mg | +2.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 5 May 2026 | Qing Li Peptide | View | 30mg | (no batch claim) | 27.6mg | -8.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Pink Cap | Lab E | Public | |
| 5 May 2026⚠️ | Shanghai Sigma Audley SSA | View | 5mg | (no batch claim) | 4.08mg | -18.4% | 99.90% | 41528 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 May 2026 | Qing Li Peptide | View | 10mg | (no batch claim) | 10.4mg | +4.0% | 98.70% | Oct 15, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
Corrections
- 6 May 2026: Peptide Sciences
- Data for sample 4z9e34c and 86nyk43 were swapped following a clerical error by Finnrick. On 6 May, the error was corrected.
- 6 May 2026: Oupeptide
- Data for sample 4z9e34c and 86nyk43 were swapped following a clerical error by Finnrick. On 6 May, the error was corrected.
- 26 Mar 2026: Nantong Guangyuan Chemical GYC
- Following community reports, we have identified clear signals of large-scale fraud in the name of Nantong Guangyuan Chemical GYC and are retracting all of their tests. The presence on the site ggpeps.net of an obviously fraudulent copy of the Finnrick web site (PeptideMeter.com) shows intent to deceive. Community reports include products not shipped after payment is taken. Finnrick strongly advises against purchasing from this vendor.
- 9 Mar 2026: Orbitrex Peptides
- Sample p4bqre8: original COA reported purity of 97.83%. Upon vendor objection, lab investigated and found the automated integration routine picked up noise as peaks and erroneously integrated it. Manual revision led to updated calculations for purity and quantity. The lab issued an updated COA. This sample's test score changed from 3.7 to 7.0, and the Finnrick Rating for Orbitrex Retatrutide changed from D to A.
- 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.
- 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.