ZLZ Peptide
Retatrutide
Finnrick tested 90 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from ZLZ Peptide between 20 Jun 2025 and 28 Apr 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™
ZLZ Peptide
Retatrutide
Tested 90 Samples
Last test 28 Apr 2026
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All Retatrutide tests from ZLZ Peptide
Samples are tested in commercial labs
Tests Count
90
Scores
AVGMINMAX
Last
28 Apr 2026
First
20 Jun 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 28 Apr 2026 | View | 40mg | 29.8mg | -25.5% | 99.90% | n/a | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 28 Apr 2026 | View | 20mg | 19.6mg | -2.0% | 99.90% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 23 Apr 2026 | View | 30mg | 33.2mg | +10.7% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / Pink Cap | Lab G | Public | |
| 22 Apr 2026 | View | Endotoxins | 30mg | n/a | n/a | n/a | low | (no batch ID) | No Label / Silver Crimp / Pink Cap | Lab G | Public |
| 29 Mar 2026 | View | 15mg | 16.9mg | +12.7% | 99.80% | n/a | 2026013010 (Yellow Cap) | White Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 25 Mar 2026 | View | 10mg | 10.1mg | +1.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab G | Public | |
| 19 Mar 2026 | View | 10mg | 14.2mg | +42.0% | 99.90% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 17 Mar 2026 | View | 10mg | 10.7mg | +7.0% | 99.70% | n/a | (no batch ID) | Silver Label / Silver Crimp / White Cap | Lab G | Public | |
| 10 Mar 2026 | View | 30mg | 29mg | -3.3% | 99.90% | n/a | 01-01-2026 | No Label / Silver Crimp / Pink Cap | Lab E | Public | |
| 6 Mar 2026 | View | 20mg | 19.7mg | -1.5% | 99.90% | n/a | 15 Dec 2025 | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 6 Mar 2026 | View | 20mg | 21.2mg | +6.0% | 99.90% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 4 Mar 2026 | View | 15mg | 16.4mg | +9.3% | 99.80% | n/a | Silver cap (grey dot) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 3 Mar 2026 | View | 10mg | 9.88mg | -1.2% | 99.90% | n/a | ZLZ 1/12/25 | Black Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 3 Mar 2026 | View | 30mg | 27.5mg | -8.3% | 99.90% | n/a | (no batch ID) | White Label / Silver Crimp / No Cap | Lab E | Public | |
| 26 Feb 2026 | View | 30mg | 28.7mg | -4.3% | 99.90% | n/a | (no batch ID) | No Label / Silver Crimp / Pink Cap | Lab E | Public | |
| 22 Feb 2026 | View | 30mg | 30.2mg | +0.7% | 99.90% | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 22 Feb 2026 | View | 40mg | 41.2mg | +3.0% | 99.90% | n/a | Clear cap, gold top | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 22 Feb 2026 | View | 30mg | 31.5mg | +5.0% | 99.60% | below LOQ | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 22 Feb 2026 | View | 60mg | 68mg | +13.3% | 99.90% | n/a | RT60 | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 20 Feb 2026 | View | 15mg | 13.9mg | -7.3% | 99.81% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 20 Feb 2026 | View | 10mg | 11.3mg | +13.0% | 99.85% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 15 Feb 2026 | View | 20mg | 22.5mg | +12.5% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 13 Feb 2026 | View | 11mg | 11.7mg | +6.4% | 99.90% | below LOQ | R11 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 9 Feb 2026 | View | 60mg | 66.4mg | +10.7% | 99.65% | n/a | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 9 Feb 2026 | View | 30mg | 31.2mg | +4.0% | 99.90% | n/a | (no batch ID) | No Label / Silver Crimp / Pink Cap | Lab E | Public | |
| 4 Feb 2026 | View | 20mg | 22mg | +10.0% | 99.80% | n/a | Gold cap | No Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 29 Jan 2026 | View | 30mg | ⚠️ Sample does not contain Retatrutide | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |||
| 29 Jan 2026 | View | 30mg | 30.9mg | +3.0% | 99.57% | n/a | TZ30202601 | White Label / Silver Crimp / Pink Cap | Lab E | Public | |
| 26 Jan 2026 | View | 20mg | 18.5mg | -7.5% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 19 Jan 2026 | View | 20mg | 20.4mg | +2.0% | 99.95% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 19 Jan 2026 | View | 40mg | 32.3mg | -19.3% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 15 Jan 2026 | View | 15mg | 18.2mg | +21.3% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 15 Jan 2026 | View | 30mg | 33.8mg | +12.7% | 99.70% | n/a | (no batch ID) | White Label / Silver Crimp / Black Cap | Lab G | Public | |
| 7 Jan 2026 | View | 15mg | 15.9mg | +6.0% | 99.60% | n/a | ZLZ 01/20/25 | Black Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 7 Jan 2026 | View | 20mg | 16.8mg | -16.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 7 Jan 2026 | View | 40mg | 43.6mg | +9.0% | 99.70% | n/a | (no batch ID) | Clear Label / Silver Crimp / Green Cap | Lab G | Public | |
| 7 Jan 2026 | View | 10mg | 11.3mg | +13.0% | 99.60% | n/a | (no batch ID) | Clear Label / Silver Crimp / Green Cap | Lab G | Public | |
| 7 Jan 2026 | View | 5mg | 5.1mg | +2.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab G | Public | |
| 29 Dec 2025 | View | 10mg | 10.4mg | +4.0% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 16 Dec 2025 | View | 20mg | 18mg | -10.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab G | Public | |
| 5 Dec 2025 | View | 20mg | 32.3mg | +61.5% | 99.80% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 23 Nov 2025 | View | 20mg | 33.2mg | +66.0% | 99.90% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 14 Nov 2025 | View | 15mg | 16.5mg | +10.0% | 99.80% | n/a | (no batch ID) | White Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 6 Nov 2025 | View | 50mg | 50.3mg | +0.6% | 99.95% | n/a | 10/25 | White Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 4 Nov 2025 | View | 10mg | 11.4mg | +14.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab G | Public | |
| 4 Nov 2025 | View | 15mg | 16.8mg | +12.0% | 99.80% | n/a | RT15 | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 4 Nov 2025 | View | 20mg | 22.6mg | +13.0% | 99.90% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 30 Oct 2025 | View | 20mg | 21.3mg | +6.5% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 24 Oct 2025 | View | 10mg | 11.35mg | +13.5% | 99.77% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 24 Oct 2025 | View | 10mg | 10.8mg | +8.0% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 23 Oct 2025 | View | 30mg | 28.8mg | -4.0% | 99.82% | n/a | RT3020250924 | White Label / Silver Crimp / Black Cap | Lab E | Public | |
| 23 Oct 2025 | View | 10mg | 10.5mg | +5.0% | 99.63% | n/a | Unk | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 23 Oct 2025 | View | 5mg | 5.31mg | +6.2% | 99.02% | n/a | R5 | White Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 21 Oct 2025 | View | 10mg | 10.4mg | +4.0% | 99.50% | n/a | RT10 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 21 Oct 2025 | View | 10mg | 10.4mg | +4.0% | 99.74% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 13 Oct 2025 | View | 20mg | 20.3mg | +1.5% | 99.80% | n/a | 09/09/25 | No Label / Gold Crimp / Clear Cap | Lab G | Public | |
| 13 Oct 2025 | View | 15mg | 17.9mg | +19.3% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 13 Oct 2025 | View | 10mg | 12mg | +20.0% | 99.40% | n/a | 08/15/25 | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 13 Oct 2025 | View | 30mg | 36.1mg | +20.3% | 99.90% | n/a | 09/29/25 | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 9 Oct 2025 | View | 5mg | 4.88mg | -2.4% | 99.69% | n/a | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 9 Oct 2025 | View | 10mg | 10.8mg | +8.0% | 99.85% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 9 Oct 2025 | View | 10mg | 9.82mg | -1.8% | 99.83% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 Oct 2025 | View | 10mg | 9.69mg | -3.1% | 99.95% | n/a | wxst2504234-001 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 Oct 2025 | View | 30mg | 31.4mg | +4.7% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 5 Oct 2025 | View | 10mg | 9.67mg | -3.3% | 99.83% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 5 Oct 2025 | View | 15mg | 14.5mg | -3.3% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 5 Oct 2025 | View | 20mg | 19.9mg | -0.5% | 99.85% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 5 Oct 2025 | View | 15mg | 14.7mg | -2.0% | 99.82% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 3 Oct 2025 | View | 10mg | 9.48mg | -5.2% | 99.94% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 30 Sep 2025 | View | 10mg | 9.68mg | -3.2% | 99.84% | n/a | RT10D | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 30 Sep 2025 | View | 20mg | 18.6mg | -7.0% | 99.95% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 30 Sep 2025 | View | 15mg | 16.7mg | +11.3% | 100.00% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 30 Sep 2025 | View | 10mg | 9.66mg | -3.4% | 98.01% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 30 Sep 2025 | View | 30mg | 30mg | 99.83% | n/a | 07-2025 | No Label / Silver Crimp / Black Cap | Lab E | Public | ||
| 10 Sep 2025 | View | 30mg | 29.2mg | -2.7% | 99.94% | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 8 Sep 2025 | View | 10mg | 11.47mg | +14.7% | 99.94% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 4 Sep 2025 | View | 20mg | 21mg | +5.0% | 99.79% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 1 Sep 2025 | View | 5mg | 6.27mg | +25.4% | 99.88% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab F | Public | |
| 21 Aug 2025 | View | 15mg | 16.6mg | +10.7% | 99.95% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 12 Aug 2025 | View | 15mg | 15.77mg | +5.1% | 99.08% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 11 Aug 2025 | View | 20mg | 20.6mg | +3.0% | 99.86% | n/a | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 11 Aug 2025 | View | 15mg | 15.7mg | +4.7% | 99.94% | n/a | (no batch ID) | White Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 11 Aug 2025 | View | 10mg | 9.82mg | -1.8% | 99.91% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 4 Aug 2025 | View | 10mg | 10.1mg | +1.0% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 3 Aug 2025 | View | 10mg | 10.84mg | +8.4% | 99.94% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 25 Jul 2025 | View | 15mg | 13.5mg | -10.0% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 24 Jul 2025 | View | 10mg | 10.78mg | +7.8% | 99.57% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab A | Public | |
| 17 Jul 2025 | View | 20mg | 19.3mg | -3.5% | 99.81% | n/a | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 30 Jun 2025 | View | 10mg | 10.52mg | +5.2% | 99.98% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab A | Public | |
| 30 Jun 2025 | View | 30mg | 32.9mg | +9.7% | 99.78% | n/a | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 20 Jun 2025 | View | 15mg | 15mg | 99.75% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | ||