ZLZ Peptide
Retatrutide
Finnrick tested 43 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from ZLZ Peptide between 20 Jun 2025 and 24 Oct 2025. Test scores average over 5, no score below 4, and at least 6 tests warrant a confident Finnrick Rating of C (Okay).
Finnrick Rating™
ZLZ Peptide
Retatrutide
Tested 43 Samples
Last test 24 Oct 2025
Take Action
Researcher
Request Full Data Access to the Finnrick database of peptide tests.
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 ZLZ Peptide
Samples are tested in commercial labs
Tests Count
43
Scores
AVGMINMAX
Last
24 Oct 2025
First
20 Jun 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 24 Oct 2025 | View | 10mg | 11.350mg | +13.5% | 99.77% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 24 Oct 2025 | View | 10mg | 10.800mg | +8.0% | 99.80% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 23 Oct 2025 | View | 10mg | 10.500mg | +5.0% | 99.63% | Unk | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 23 Oct 2025 | View | 30mg | 28.800mg | -4.0% | 99.82% | RT3020250924 | White Label / Silver Crimp / Black Cap | Lab E | Public | |
| 23 Oct 2025 | View | 5mg | 5.310mg | +6.2% | 99.02% | R5 | White Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 21 Oct 2025 | View | 10mg | 10.400mg | +4.0% | 99.50% | RT10 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 21 Oct 2025 | View | 10mg | 10.400mg | +4.0% | 99.74% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 13 Oct 2025 | View | 30mg | 36.100mg | +20.3% | 99.90% | 09/29/25 | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 13 Oct 2025 | View | 10mg | 12.000mg | +20.0% | 99.40% | 08/15/25 | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 13 Oct 2025 | View | 20mg | 20.300mg | +1.5% | 99.80% | 09/09/25 | No Label / Gold Crimp / Clear Cap | Lab G | Public | |
| 13 Oct 2025 | View | 15mg | 17.900mg | +19.3% | 99.80% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 9 Oct 2025 | View | 10mg | 9.820mg | -1.8% | 99.83% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 9 Oct 2025 | View | 5mg | 4.880mg | -2.4% | 99.69% | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 9 Oct 2025 | View | 10mg | 10.800mg | +8.0% | 99.85% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 Oct 2025 | View | 10mg | 9.670mg | -3.3% | 99.83% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 Oct 2025 | View | 15mg | 14.700mg | -2.0% | 99.82% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 5 Oct 2025 | View | 10mg | 9.690mg | -3.1% | 99.95% | wxst2504234-001 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 Oct 2025 | View | 15mg | 14.500mg | -3.3% | 99.70% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 5 Oct 2025 | View | 20mg | 19.900mg | -0.5% | 99.85% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 5 Oct 2025 | View | 30mg | 31.400mg | +4.7% | 99.95% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 3 Oct 2025 | View | 10mg | 9.480mg | -5.2% | 99.94% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 30 Sep 2025 | View | 10mg | 9.680mg | -3.2% | 99.84% | RT10D | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 30 Sep 2025 | View | 20mg | 18.600mg | -7.0% | 99.95% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 30 Sep 2025 | View | 10mg | 9.660mg | -3.4% | 98.01% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 30 Sep 2025 | View | 30mg | 30.000mg | 99.83% | 07-2025 | No Label / Silver Crimp / Black Cap | Lab E | Public | ||
| 30 Sep 2025 | View | 15mg | 16.700mg | +11.3% | 100.00% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 10 Sep 2025 | View | 30mg | 29.200mg | -2.7% | 99.94% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 8 Sep 2025 | View | 10mg | 11.473mg | +14.7% | 99.94% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 4 Sep 2025 | View | 20mg | 21.000mg | +5.0% | 99.79% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 1 Sep 2025 | View | 5mg | 6.270mg | +25.4% | 99.88% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab F | Public | |
| 21 Aug 2025 | View | 15mg | 16.600mg | +10.7% | 99.95% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 12 Aug 2025 | View | 15mg | 15.770mg | +5.1% | 99.08% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 11 Aug 2025 | View | 15mg | 15.700mg | +4.7% | 99.94% | (no batch ID) | White Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 11 Aug 2025 | View | 10mg | 9.820mg | -1.8% | 99.91% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 11 Aug 2025 | View | 20mg | 20.600mg | +3.0% | 99.86% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 4 Aug 2025 | View | 10mg | 10.100mg | +1.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 3 Aug 2025 | View | 10mg | 10.840mg | +8.4% | 99.94% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 25 Jul 2025 | View | 15mg | 13.500mg | -10.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 24 Jul 2025 | View | 10mg | 10.780mg | +7.8% | 99.57% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab A | Public | |
| 17 Jul 2025 | View | 20mg | 19.300mg | -3.5% | 99.81% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 30 Jun 2025 | View | 30mg | 32.900mg | +9.7% | 99.78% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 30 Jun 2025 | View | 10mg | 10.520mg | +5.2% | 99.98% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 20 Jun 2025 | View | 15mg | 15.000mg | 99.75% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | ||