Peptide-S
Retatrutide
Finnrick tested 41 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Peptide-S between 11 Jun 2025 and 10 Mar 2026. Test scores average below 4 or some scores below 3, and at least 6 tests, warrant a confident Finnrick Rating of E (Bad).
Finnrick Rating™
Peptide-S
Retatrutide
Tested 41 Samples
Last test 10 Mar 2026
Take Action
Free peptide testing
Mail in a sample (US only) to get confidence for the specific vials you have, and contribute to identifying unsafe supply chains, so other people can avoid risky and costly mistakes.
Other Retatrutide tests from top-rated vendors:
All Retatrutide tests from Peptide-S
Samples are tested in commercial labs
Tests Count
41
Scores
AVGMINMAX
Last
10 Mar 2026
First
11 Jun 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 10 Mar 2026 | View | 20mg | 19.7mg | -1.5% | 99.90% | n/a | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 22 Feb 2026 | View | 30mg | 32.4mg | +8.0% | 99.41% | n/a | Dec2, 15. 2025 | (no data) | Lab E | Public | |
| 15 Feb 2026 | View | 20mg | 14.7mg | -26.5% | 99.70% | n/a | Jan. 2, 2026 | No Label / Silver Crimp / Orange Cap | Lab G | Public | |
| 10 Feb 2026 | View | 20mg | 21.4mg | +7.0% | 99.80% | n/a | Jul 2, 2025 | No Label / Gold Crimp / Clear Cap | Lab G | Public | |
| 26 Jan 2026 | View | 10mg | 10.1mg | +1.0% | 99.70% | n/a | Dec 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 26 Jan 2026 | View | 30mg | 34.8mg | +16.0% | 99.60% | n/a | Dec 2, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 7 Jan 2026 | View | 30mg | 32.7mg | +9.0% | 99.69% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 1 Jan 2026 | View | 30mg | 33.1mg | +10.3% | 99.70% | n/a | July 15, 2025 | White Label / Silver Crimp / Blue Cap | Lab G | Public | |
| 16 Dec 2025 | View | 30mg | 33.9mg | +13.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Purple Cap | Lab G | Public | |
| 17 Nov 2025 | View | 20mg | ⚠️ Sample does not contain Retatrutide | n/a | (no batch ID) | White Label / Silver Crimp / Orange Cap | Lab E | Public | |||
| 4 Nov 2025 | View | 10mg | 11.1mg | +11.0% | 99.60% | n/a | July 15, 2025 | No Label / Silver Crimp / Orange Cap | Lab G | Public | |
| 24 Oct 2025 | View | 10mg | 10mg | 99.50% | n/a | Sep 4, 2025 | No Label / Silver Crimp / Yellow Cap | Lab G | Public | ||
| 13 Oct 2025 | View | 5mg | 5.4mg | +8.0% | 99.00% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab G | Public | |
| 30 Sep 2025 | View | 20mg | 18.7mg | -6.5% | 99.95% | n/a | Rt20 | No Label / Gold Crimp / Clear Cap | Lab E | Public | |
| 18 Sep 2025 | View | 20mg | 30.7mg | +53.5% | 99.94% | n/a | (no batch ID) | White Label / Gold Crimp / Clear Cap | Lab E | Public | |
| 9 Sep 2025 | View | 50mg | 56.28mg | +12.6% | 99.92% | n/a | Jul,15.2025 | No Label / Silver Crimp / Clear Green Cap | Lab D | Public | |
| 4 Sep 2025 | View | 10mg | ⚠️ Sample does not contain Retatrutide | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |||
| 4 Sep 2025 | View | 15mg | 13.7mg | -8.7% | 99.85% | n/a | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 4 Sep 2025 | View | 20mg | 18.8mg | -6.0% | 99.92% | n/a | (no batch ID) | No Label / Gold Crimp / Clear Cap | Lab E | Public | |
| 31 Aug 2025 | View | 10mg | 9.64mg | -3.6% | 99.95% | n/a | 7/2/25 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 21 Aug 2025 | View | 10mg | 9.77mg | -2.3% | 99.85% | n/a | Jul 15, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 12 Aug 2025 | View | 30mg | 32.39mg | +8.0% | 99.72% | n/a | 06/02/2025 | No Label / Silver Crimp / Blue Cap | Lab A | Public | |
| 11 Aug 2025 | View | 40mg | 40.6mg | +1.5% | 99.93% | n/a | (no batch ID) | White Label / Silver Crimp / Clear Red Cap | Lab E | Public | |
| 6 Aug 2025 | View | Endotoxins | 10mg | n/a | n/a | n/a | not detected | May 2, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Finnrick |
| 4 Aug 2025 | View | 20mg | 21.13mg | +5.7% | 99.60% | n/a | (no batch ID) | No Label / Golden Crimp / Clear Cap | Lab A | Public | |
| 4 Aug 2025 | View | 5mg | 4.82mg | -3.6% | 99.81% | n/a | 4484 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 4 Aug 2025 | View | 10mg | 11.43mg | +14.3% | 99.16% | n/a | Apr, 2025 | No Label / Silver Crimp / Yellow Cap | Lab D | Public | |
| 3 Aug 2025 | View | 30mg | 32.49mg | +8.3% | 99.50% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab A | Public | |
| 25 Jul 2025 | View | 10mg | 10.4mg | +4.0% | 99.94% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 25 Jul 2025 | View | 20mg | 20.4mg | +2.0% | 99.95% | n/a | 5/2/25 | No Label / Gold Crimp / Clear Cap | Lab E | Public | |
| 25 Jul 2025 | View | 30mg | 28mg | -6.7% | 99.78% | n/a | Apr 2, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 25 Jul 2025 | View | 10mg | 9.19mg | -8.1% | 99.93% | n/a | May 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 25 Jul 2025 | View | 10mg | 5.4mg | -46.0% | 99.80% | n/a | May 2, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Finnrick | |
| 16 Jul 2025 | View | 10mg | 6.03mg | -39.7% | 98.83% | n/a | May 2, 2025 | No Label / Silver Crimp / Blue Cap | Lab F | Finnrick | |
| 16 Jul 2025 | View | 10mg | 5.95mg | -40.5% | 99.04% | n/a | May 2, 2025 | No Label / Silver Crimp / Blue Cap | Lab F | Finnrick | |
| 3 Jul 2025 | View | 10mg | 9.9mg | -1.0% | 99.57% | n/a | May 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 30 Jun 2025 | View | 10mg | 10.56mg | +5.6% | 99.13% | n/a | Apr, 2025 | No Label / Silver Crimp / Yellow Cap | Lab A | Public | |
| 30 Jun 2025 | View | 10mg | 7.36mg | -26.4% | 99.24% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 30 Jun 2025 | View | 10mg | 10.1mg | +1.0% | 99.63% | n/a | May 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 13 Jun 2025 | View | 20mg | 22.21mg | +11.1% | 99.88% | n/a | (no batch ID) | No Label / Gold Crimp / Clear Cap | Lab F | Public | |
| 11 Jun 2025 | View | 10mg | 14.8mg | +48.0% | 99.54% | n/a | May 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 11 Jun 2025 | View | 5mg | 4.08mg | -18.4% | 99.33% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |