Retatrutide(GLP-1, GIP, and GCGR agonist)

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.