Rayshine Peptide Biochemicals
Retatrutide
Finnrick tested 8 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Rayshine Peptide Biochemicals between 12 Aug 2025 and 4 Aug 2026. Test scores average over 5, no score below 4, and at least 6 tests warrant a confident Finnrick Rating of C (Okay).
Finnrick Rating™
Rayshine Peptide Biochemicals
Retatrutide
Tested 8 Samples
Last test 4 Aug 2026
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Samples are tested in commercial labs
Tests Count
8
Scores
AVGMINMAX
Last
4 Aug 2026
First
12 Aug 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 4 Aug 2026 | View | 20mg | 21mg | +5.0% | 94.00% | low | April 2, 2026 | No label / Gold crimp / Clear cap | Lab E | Public | |
| 18 Mar 2026 | View | 20mg | 16.7mg | -16.5% | 99.90% | n/a | RT20 | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 19 Jan 2026 | View | 5mg | 8.41mg | +68.2% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 5 Oct 2025 | View | 20mg | 19.6mg | -2.0% | 99.92% | n/a | July 15,2025 | No Label / Gold Crimp / Clear Cap | Lab E | Public | |
| 5 Oct 2025 | View | 30mg | 30.8mg | +2.7% | 99.72% | n/a | July 15, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 5 Oct 2025 | View | 30mg | 28.8mg | -4.0% | 99.70% | n/a | July 15, 2025 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 3 Oct 2025 | View | 5mg | 5.27mg | +5.4% | 99.76% | n/a | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 12 Aug 2025 | View | 20mg | 21.85mg | +9.3% | 99.41% | n/a | (no batch ID) | No Label / Gold Crimp / Clear Cap | Lab A | Public | |