Tirzepatide(GLP-1 and GIP agonist)
We've tested 988 samples of Tirzepatide sourced from 100 vendors between 5 Dec 2024 and 6 Jan 2026. Purity varies from 75.00% to 100.00%, and quantity can diverge by up to +/-640% vs advertised value.
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Vendors
| Tests | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Vendor | Rating | Count | Avg | Min | Max | Oldest | Most Recent | ||
 | 14 | 17 Dec 2024 | 12 Aug 2025 | ||||||
 | 8 | 11 Jun 2025 | 29 Dec 2025 | ||||||
| 7 | 2 Jul 2025 | 29 Oct 2025 | ||||||
 | 10 | 17 Dec 2024 | 24 Oct 2025 | ||||||
| 2 | 29 Dec 2025 | 29 Dec 2025 | ||||||
 | 4 | 6 May 2025 | 7 May 2025 | ||||||
| 2 | 23 Nov 2025 | 24 Nov 2025 | ||||||
| 2 | 25 Jul 2025 | 25 Jul 2025 | ||||||
| 2 | 8 Jul 2025 | 23 Oct 2025 | ||||||
| 3 | 25 Jul 2025 | 30 Sep 2025 | ||||||
| 2 | 12 Dec 2025 | 12 Dec 2025 | ||||||
 | 4 | 13 Feb 2025 | 19 Feb 2025 | ||||||
 | 5 | 7 May 2025 | 10 Sep 2025 | ||||||
 | 3 | 5 Aug 2025 | 4 Sep 2025 | ||||||
| 3 | 11 Jun 2025 | 4 Nov 2025 | ||||||
 | 2 | 21 May 2025 | 21 May 2025 | ||||||
 | 5 | 27 Feb 2025 | 20 Mar 2025 | ||||||
| 4 | 25 Jul 2025 | 17 Oct 2025 | ||||||
| 3 | 11 Jun 2025 | 21 Aug 2025 | ||||||
 | 6 | 27 Feb 2025 | 4 Sep 2025 | ||||||
| 8 | 20 Jun 2025 | 29 Dec 2025 | ||||||
| 9 | 17 Oct 2025 | 29 Dec 2025 | ||||||
| 7 | 3 Oct 2025 | 30 Dec 2025 | ||||||
 | 16 | 17 Dec 2024 | 4 Dec 2025 | ||||||
| 13 | 20 Jun 2025 | 1 Jan 2026 | ||||||
| 8 | 3 Aug 2025 | 18 Dec 2025 | ||||||
| 6 | 30 Sep 2025 | 6 Dec 2025 | ||||||
| 13 | 3 Oct 2025 | 25 Nov 2025 | ||||||
 | 6 | 14 Jan 2025 | 13 Feb 2025 | ||||||
 | 4 | 7 May 2025 | 21 May 2025 | ||||||
| 2 | 2 Dec 2025 | 2 Dec 2025 | ||||||
 | 3 | 2 Apr 2025 | 2 Apr 2025 | ||||||
| 3 | 8 Jul 2025 | 3 Oct 2025 | ||||||
 | 4 | 7 May 2025 | 21 May 2025 | ||||||
| 5 | 11 Aug 2025 | 3 Oct 2025 | ||||||
 | 5 | 25 Apr 2025 | 3 Oct 2025 | ||||||
 | 5 | 24 Apr 2025 | 21 May 2025 | ||||||
| 4 | 9 Jun 2025 | 28 Aug 2025 | ||||||
| 5 | 2 Jul 2025 | 25 Nov 2025 | ||||||
| 19 | 3 Jun 2025 | 1 Jan 2026 | ||||||
 | 6 | 14 Jan 2025 | 20 Mar 2025 | ||||||
| 6 | 16 Jul 2025 | 13 Dec 2025 | ||||||
| 12 | 25 Jul 2025 | 4 Nov 2025 | ||||||
 | 12 | 28 Mar 2025 | 25 Jul 2025 | ||||||
 | 10 | 17 Dec 2024 | 30 Apr 2025 | ||||||
| 10 | 11 Jun 2025 | 1 Jan 2026 | ||||||
| 8 | 11 Jun 2025 | 5 Dec 2025 | ||||||
| 20 | 9 Jun 2025 | 31 Dec 2025 | ||||||
| 6 | 30 Sep 2025 | 29 Dec 2025 | ||||||
 | 10 | 16 Mar 2025 | 7 May 2025 | ||||||
 | 9 | 16 Mar 2025 | 29 Dec 2025 | ||||||
 | 6 | 11 Jun 2025 | 3 Oct 2025 | ||||||
 | 17 | 9 Jun 2025 | 1 Jan 2026 | ||||||
| 10 | 25 Jul 2025 | 13 Dec 2025 | ||||||
| 13 | 3 Jul 2025 | 6 Jan 2026 | ||||||
| 5 | 11 Jun 2025 | 6 Nov 2025 | ||||||
 | 3 | 3 Jun 2025 | 25 Nov 2025 | ||||||
 | 2 | 14 Feb 2025 | 19 Feb 2025 | ||||||
 | 5 | 17 Dec 2024 | 20 Mar 2025 | ||||||
| 5 | 3 Jul 2025 | 29 Dec 2025 | ||||||
 | 5 | 29 Jun 2025 | 18 Sep 2025 | ||||||
| 5 | 3 Jul 2025 | 13 Dec 2025 | ||||||
 | 30 | 3 Jul 2025 | 13 Dec 2025 | ||||||
| 9 | 5 Aug 2025 | 17 Dec 2025 | ||||||
| 11 | 4 Sep 2025 | 29 Dec 2025 | ||||||
| 15 | 23 Oct 2025 | 13 Dec 2025 | ||||||
| 46 | 5 Dec 2024 | 1 Jan 2026 | ||||||
 | 10 | 14 Jan 2025 | 16 Jul 2025 | ||||||
| 8 | 5 Dec 2024 | 29 Dec 2025 | ||||||
| 20 | 20 Jun 2025 | 29 Dec 2025 | ||||||
| 7 | 11 Jun 2025 | 1 Jan 2026 | ||||||
| 6 | 3 Oct 2025 | 18 Nov 2025 | ||||||
 | 32 | 9 Jun 2025 | 18 Dec 2025 | ||||||
 | 26 | 15 May 2025 | 18 Dec 2025 | ||||||
| 39 | 20 Jun 2025 | 14 Nov 2025 | ||||||
 | 5 | 28 Mar 2025 | 24 Jul 2025 | ||||||
 | 4 | 20 Jun 2025 | 5 Aug 2025 | ||||||
| 4 | 11 Jun 2025 | 11 Aug 2025 | ||||||
 | 8 | 14 Jan 2025 | 16 Jul 2025 | ||||||
 | 29 | 2 Jul 2025 | 29 Dec 2025 | ||||||
| 16 | 9 Jun 2025 | 1 Jan 2026 | ||||||
| 17 | 5 Dec 2024 | 29 Dec 2025 | ||||||
| 13 | 2 Jul 2025 | 1 Jan 2026 | ||||||
 | 6 | 16 Mar 2025 | 25 Mar 2025 | ||||||
| 30 | 11 Jun 2025 | 30 Dec 2025 | ||||||
| 59 | 11 Jun 2025 | 29 Dec 2025 | ||||||
 | 16 | 3 Jun 2025 | 29 Dec 2025 | ||||||
| 8 | 20 Jun 2025 | 29 Dec 2025 | ||||||
 | 45 | 3 Jun 2025 | 1 Jan 2026 | ||||||
| 22 | 21 Aug 2025 | 29 Dec 2025 | ||||||
 | 4 | 13 Jun 2025 | 5 Aug 2025 | ||||||
| 4 | 8 Jul 2025 | 17 Dec 2025 | ||||||
 | 4 | 2 Jul 2025 | 30 Dec 2025 | ||||||
| 1 | 25 Jul 2025 | 25 Jul 2025 | ||||||
| 1 | 13 Jun 2025 | 13 Jun 2025 | ||||||
| 1 | 20 Jun 2025 | 20 Jun 2025 | ||||||
| 1 | 11 Jun 2025 | 11 Jun 2025 | ||||||
| 1 | 17 Jul 2025 | 17 Jul 2025 | ||||||
| 1 | 11 Jun 2025 | 11 Jun 2025 | ||||||
| 1 | 25 Nov 2025 | 25 Nov 2025 | ||||||
Most recent Tirzepatide tests
Samples are tested in commercial labs
| Quantity | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Vendor | Certificate | Test Score | Label | Batch | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 6 Jan 2026 | Uther | View | 15mg | 17.4mg | 12.4mg | -28.7% | 99.12% | below LOQ | ZE15-1031 | No Label / Red Crimp / White Cap | Lab E | Public | |
| 1 Jan 2026 | Xian Yihang Technology | View | 20mg | (no batch claim) | 21.4mg | +7.0% | 99.70% | n/a | (no batch ID) | Clear Label / Silver Crimp / Violet Cap | Lab G | Public | |
| 1 Jan 2026 | TSC Top Supplements China | View | 40mg | (no batch claim) | 48.6mg | +21.5% | 99.90% | n/a | (no batch ID) | White Label / Silver Crimp / Blue Cap | Lab G | Public | |
| 1 Jan 2026 | ZhuoYan lab | View | 50mg | (no batch claim) | 48mg | -4.0% | 99.90% | n/a | (no batch ID) | Yellow Label / Silver Crimp / Red Cap | Lab G | Public | |
| 1 Jan 2026 | TSC Top Supplements China | View | 15mg | (no batch claim) | 14.5mg | -3.3% | 99.80% | n/a | 10/10/25 | White Label / Silver Crimp / Clear Pink Cap | Lab G | Public | |
| 1 Jan 2026 | ZLZ Peptide | View | 20mg | (no batch claim) | 23.4mg | +17.0% | 99.80% | n/a | (no batch ID) | (no data) | Lab G | Public | |
| 1 Jan 2026 | Shanxi Qianyecao Biotech QYC | View | 15mg | (no batch claim) | 19.2mg | +28.0% | 99.70% | n/a | TR15 | Silver Label / Silver Crimp / Clear Pink Cap | Lab G | Public | |
Corrections
- 26 Dec 2025: Quenna PMQ
- Submitter indicated having swapped vendor identification with sample yauaeu5. This should be Quenna PMQ instead of OUPeptide. Evidence under review, ratings might be updated.
- 26 Dec 2025: Oupeptide
- Submitter indicated having swapped vendor identification with sample u4q3pap. This should be OUPeptide instead of Quenna PMQ. Evidence under review, ratings might be updated.
- 12 Dec 2025: Diju Peptides Wellness and Co
- Two samples of Tirzepatide were erroneously entered as from Diju Peptides Wellness, and have been moved to another vendor.
- 29 Aug 2025: Peptide Sciences
- Peptide Sciences have notified Finnrick that they do not distribute 60mg Tirzepatide. The sample submitted in this quantity, tested 17 July, was therefore removed from the site and is no longer part of the Finnrick Rating.
- 17 Apr 2025: NextechLabs
- Lab A test 27 Feb 2025, lab C test 28 Feb 2025, lab B test 30 Mar 2025: updated batch claim quantity, label claim was clear, erroneously listed 10mg.