Peptide Sciences
Retatrutide
Finnrick tested 35 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Peptide Sciences between 17 Dec 2024 and 23 Oct 2025. 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 Sciences
Retatrutide
Tested 35 Samples
Last test 23 Oct 2025
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All Retatrutide tests from Peptide Sciences
Samples are tested in commercial labs
Tests Count
35
Scores
AVGMINMAX
Last
23 Oct 2025
First
17 Dec 2024
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Batch | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 23 Oct 2025 | View | 50mg | 59.2mg | 52.100mg | -12.1% | 98.74% | M5P0S03-8A | (no data) | Lab E | Public | |
| 4 Aug 2025 | View | 6mg | (no batch claim) | 5.750mg | -4.2% | 99.31% | VI9920250415-6 | White Label / Blue Crimp / Pink Cap | Lab D | Public | |
| 4 Aug 2025 | View | 12mg | (no batch claim) | 11.090mg | -7.6% | 99.28% | (no batch ID) | (no data) | Lab D | Public | |
| 17 Jul 2025 | View | 5mg | (no batch claim) | 4.860mg | -2.8% | 99.95% | (no batch ID) | Blue Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 3 Jul 2025 | View | 6mg | (no batch claim) | 4.980mg | -17.0% | 99.77% | VI9920250415-6 | White Label / Blue Crimp / Pink Cap | Lab E | Public | |
| 3 Jul 2025 | View | 12mg | (no batch claim) | 9.360mg | -22.0% | 99.54% | VI9920250417-12 | White Label / Blue Crimp / Brown Cap | Lab E | Public | |
| 30 Jun 2025 | View | 6mg | (no batch claim) | 5.439mg | -9.3% | 99.74% | VI9920250415-6 | White Label / Blue Crimp / Pink Cap | Lab A | Public | |
| 27 Jun 2025 | View | 6mg | (no batch claim) | 5.251mg | -12.5% | 99.47% | VI9920250415-6 | White Label / Blue Crimp / Pink Cap | Lab A | Public | |
| 11 Jun 2025 | View | 16mg | (no batch claim) | 12.300mg | -23.1% | 99.70% | RET9920250212-16 | White Label / Blue Crimp / Clear Teal Cap | Lab E | Public | |
| 7 May 2025 | View | 16mg | (no batch claim) | 13.600mg | -15.0% | 100.00% | RET9920241120-16 | White, Orange Label / Blue Crimp / Turquoise Cap | Lab E | Finnrick | |
| 7 May 2025 | View | 16mg | (no batch claim) | 13.600mg | -15.0% | 100.00% | RET9920241120-16 | White, Orange Label / Blue Crimp / Turquoise Cap | Lab E | Finnrick | |
| 7 May 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231109-6 | White, Orange Label / Purple Crimp / Orange Cap | Lab E | Finnrick | ||||
| 6 May 2025 | View | 12mg | (no batch claim) | 12.126mg | +1.1% | 99.95% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab C | Finnrick | |
| 6 May 2025 | View | 12mg | (no batch claim) | 12.170mg | +1.4% | 99.95% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab C | Finnrick | |
| 6 May 2025 | View | 12mg | (no batch claim) | 10.100mg | -15.8% | 98.83% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab E | Finnrick | |
| 5 May 2025 | View | 12mg | (no batch claim) | 11.510mg | -4.1% | 99.82% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab B | Finnrick | |
| 5 May 2025 | View | 12mg | (no batch claim) | 11.560mg | -3.7% | 99.79% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab B | Finnrick | |
| 25 Apr 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231109-6 | White Label / Purple Crimp / Orange Cap | Lab F | Finnrick | ||||
| 22 Apr 2025 | View | 12mg | (no batch claim) | 10.520mg | -12.3% | 99.71% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab D | Finnrick | |
| 22 Apr 2025 | View | 12mg | (no batch claim) | 10.480mg | -12.7% | 99.56% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab D | Finnrick | |
| 22 Apr 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231109-6 | White, Orange Label / Purple Crimp / Orange Cap | Lab D | Finnrick | ||||
| 22 Apr 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231109-6 | White, Orange Label / Purple Crimp / Orange Cap | Lab D | Finnrick | ||||
| 18 Apr 2025 | View | 6mg | (no batch claim) | 8.720mg | +45.3% | 99.09% | RET7920231109-6 | White Label / Purple Crimp / Orange Cap | Lab D | Finnrick | |
| 18 Apr 2025 | View | 6mg | (no batch claim) | 8.750mg | +45.8% | 99.05% | RET7920231109-6 | White Label / Purple Crimp / Orange Cap | Lab D | Finnrick | |
| 28 Mar 2025 | View | 16mg | (no batch claim) | 14.165mg | -11.5% | 99.61% | RET9920241120-16 | White, Orange Label / Blue Crimp / Turquoise Cap | Lab C | Finnrick | |
| 28 Mar 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231109-6 | White, Orange Label / Purple Crimp / Orange Cap | Lab C | Finnrick | ||||
| 28 Mar 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231109-6 | White, Orange Label / Purple Crimp / Orange Cap | Lab C | Finnrick | ||||
| 28 Mar 2025 | View | 16mg | (no batch claim) | 14.693mg | -8.2% | 99.55% | RET9920241120-16 | White, Orange Label / Blue Crimp / Turquoise Cap | Lab C | Finnrick | |
| 28 Mar 2025 | View | 12mg | (no batch claim) | 10.606mg | -11.6% | 99.63% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab C | Finnrick | |
| 28 Mar 2025 | View | 12mg | (no batch claim) | 11.104mg | -7.5% | 99.70% | RET9920241222-12 | White, Orange Label / Black Crimp / Red Cap | Lab C | Finnrick | |
| 19 Feb 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231124-6 | White Label / Purple Crimp / Orange Cap | Lab B | Finnrick | ||||
| 14 Feb 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231124-6 | White Label / Purple Crimp / Orange Cap | Lab A | Finnrick | ||||
| 13 Feb 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231124-6 | White Label / Purple Crimp / Orange Cap | Lab C | Finnrick | ||||
| 13 Feb 2025 | View | 6mg | ⚠️ Sample does not contain Retatrutide | RET7920231124-6 | White Label / Purple Crimp / Orange Cap | Lab C | Finnrick | ||||
| 17 Dec 2024 | View | 6mg | (no batch claim) | 7.823mg | +30.4% | 99.48% | RET7920231124-6 | White Label / Purple Crimp / Orange Cap | Lab A | Finnrick | |
Corrections
- 29 Aug 2025
- Batch identifier for Peptide Sciences Retatrutide 6mg vial tested 30 June was missing. Test score changed from 6.3 to 8.3.
- 6 Apr 2025
- Lab A test 14 Feb 2025: updated compound identification, removed purity and quantity values. Error in analysis by Lab, compound was incorrectly identified as Retatrutide. Lab issued an updated test certificate.