Nantong Guangyuan Chemical GYC
Tirzepatide
Finnrick tested 22 samples of Tirzepatide (GLP-1 and GIP agonist) from Nantong Guangyuan Chemical GYC between 3 Oct 2025 and 25 Mar 2026. Fraud: Based on community reports, we have identified ggpeps.net as a fraudulent web site aggressively operating in the name of this vendor. It is most likely entirely unaffiliated with the original company, the fraud is putting the public at risk, so we are temporarily putting all tests under review.
Finnrick Rating™
Nantong Guangyuan Chemical GYC
Tirzepatide
Tested 22 Samples
Last test 25 Mar 2026
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All Tirzepatide tests from Nantong Guangyuan Chemical GYC
Samples are tested in commercial labs
Tests Count
22
Scores
AVGMINMAX
Last
25 Mar 2026
First
3 Oct 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Batch | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 25 Mar 2026⚠️ | View | 60mg | 66.5mg | 64.6mg | -2.8% | 99.90% | G2025011060 Black Cap | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 1 Mar 2026⚠️ | View | 30mg | (no batch claim) | 29.1mg | -3.0% | 99.80% | 2025121030 | No Label / Silver Crimp / Red Cap | Lab G | Public | |
| 26 Feb 2026⚠️ | View | 30mg | (no batch claim) | 31mg | +3.3% | 99.02% | 2025121030 | No Label / Silver Crimp / Orange Cap | Lab E | Public | |
| 10 Feb 2026⚠️ | View | 60mg | 64.0mg | 60.1mg | -6.2% | 99.90% | 2025111060 | (no data) | Lab G | Public | |
| 26 Jan 2026⚠️ | View | 20mg | (no batch claim) | 22.9mg | +14.5% | 99.80% | 2025121020 | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 26 Jan 2026⚠️ | View | 10mg | (no batch claim) | 11.3mg | +13.0% | 99.80% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab G | Public | |
| 9 Jan 2026⚠️ | View | 40mg | (no batch claim) | 37.9mg | -5.3% | 99.95% | 2025101040 | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 7 Jan 2026⚠️ | View | 10mg | (no batch claim) | 9.9mg | -1.0% | 99.70% | (no batch ID) | White Label / Silver Crimp / Green Cap | Lab G | Public | |
| 7 Jan 2026⚠️ | View | 50mg | (no batch claim) | 57mg | +14.0% | 99.90% | (no batch ID) | White Label / Blue Crimp / Clear Cap | Lab G | Public | |
| 25 Nov 2025⚠️ | View | 40mg | (no batch claim) | 41.1mg | +2.8% | 98.78% | 20250840 | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 23 Nov 2025⚠️ | View | 50mg | 58.4mg | 43.7mg | -25.2% | 99.90% | 2025081050 | No Label / Blue Crimp / Clear Cap | Lab G | Public | |
| 23 Nov 2025⚠️ | View | 40mg | (no batch claim) | 40.44mg | +1.1% | 99.87% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab A | Public | |
| 4 Nov 2025⚠️ | View | 50mg | 58.4mg | 42.3mg | -27.6% | 99.95% | 2025081050 | No Label / Blue Crimp / Clear Cap | Lab E | Public | |
| 30 Oct 2025⚠️ | View | 60mg | 64.2mg | 64.49mg | +0.4% | 99.70% | 99 20250599 | White Label / Silver Crimp / Black Cap | Lab G | Public | |
| 24 Oct 2025⚠️ | View | 30mg | (no batch claim) | 35.51mg | +18.4% | 99.90% | (no batch ID) | No Label / Silver Crimp / Orange Cap | Lab G | Public | |
| 24 Oct 2025⚠️ | View | 30mg | (no batch claim) | 35.57mg | +18.6% | 99.90% | (no batch ID) | No Label / Silver Crimp / Orange Cap | Lab G | Public | |
| 23 Oct 2025⚠️ | View | 20mg | 22.9mg | 20.1mg | -12.4% | 99.95% | G20250542 | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 23 Oct 2025⚠️ | View | 30mg | 32.5mg | 25.8mg | -20.5% | 99.95% | 2025091031 | Silver Label / Silver Crimp / Orange Cap | Lab E | Public | |
| 22 Oct 2025⚠️ | View | 40mg | (no batch claim) | 44.31mg | +10.8% | 99.86% | 20250840 | White Label / Silver Crimp / Clear Blue Cap | Lab A | Public | |
| 22 Oct 2025⚠️ | View | 30mg | (no batch claim) | 35.71mg | +19.0% | 100.00% | 2025091030 | White Label / Silver Crimp / Orange Cap | Lab A | Public | |
| 3 Oct 2025⚠️ | View | 30mg | (no batch claim) | 33.3mg | +11.0% | 99.92% | (no batch ID) | No Label / Silver Crimp / Orange Cap | Lab E | Public | |
| 3 Oct 2025⚠️ | View | 20mg | 21.2mg | 19.8mg | -6.5% | 99.74% | 20250446 | White Label / Silver Crimp / Clear Green Cap | Lab E | Public | |
Corrections
- 26 Mar 2026
- 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.