Rayshine Peptide Biochemicals reviews
12 independent lab tests across 2 products · 99.5% average purity
- 12 HPLC samples across 2 products
- Catalog avg purity 99.5%
- www.rayshine-peptide.com
- Independent testing, no pay-to-rank
Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
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What the testing shows
Across 11 measured samples from Rayshine Peptide Biochemicals, 1 came in more than 5% under the quantity on the label (9%). Another 3 measured more than 5% over. Purity across 12 readings ran from 94% to 99.95%, median 99.9%. Samples span Aug 2025 to Aug 2026.
- Under label
- 1/11
- Median purity
- 99.9%
- Latest sample
- Aug 2026
- Ships from
- China
more than 5% short
94%–99.95% range
first tested Aug 2025
per vendor listing
Lab testing results
Independent results across 2 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Tirzepatide | AGREAT | 4 | 100.0% | 99.9% – 99.9% | 1/26/2026 | — | — |
| Retatrutide | DPOOR | 8 | 62.5% | 94.0% – 99.9% | 8/4/2026 | — | — |
Individual lab tests
Date
8/4/2026
Purity
94%
Quantity
20 mg → 21 mg
Lab
Krause Analytical
Vial
No label / Gold crimp / Clear cap
Date
3/18/2026
Purity
99.9%
Quantity
20 mg → 16.7 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Violet Cap
Date
1/26/2026
Purity
99.9%
Quantity
30 mg → 29.8 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Red Cap
Date
1/19/2026
Purity
99.95%
Quantity
5 mg → 8.41 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
Date
10/23/2025
Purity
99.95%
Quantity
40 mg → 41.2 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Clear Green Cap
Date
10/5/2025
Purity
99.92%
Quantity
20 mg → 19.6 mg
Lab
Krause Analytical
Vial
No Label / Gold Crimp / Clear Cap
Date
10/5/2025
Purity
99.7%
Quantity
30 mg → 28.8 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
Date
10/5/2025
Purity
99.72%
Quantity
30 mg → 30.8 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
Date
10/3/2025
Purity
99.95%
Quantity
30 mg → 30.5 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Violet Cap
Date
10/3/2025
Purity
99.76%
Quantity
5 mg → 5.27 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
Date
10/3/2025
Purity
99.95%
Quantity
30 mg → 31.9 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Violet Cap
Date
8/12/2025
Purity
99.413%
Quantity
20 mg → 21.85 mg
Lab
Chromate
Vial
No Label / Gold Crimp / Clear Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo label / Gold crimp / Clear cap | 8/4/2026 | 9.4 | 94% | 20 mg → 21 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Violet Cap | 3/18/2026 | 10.0 | 99.9% | 20 mg → 16.7 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Red Cap | 1/26/2026 | 10.0 | 99.9% | 30 mg → 29.8 mg | BTLabs | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 1/19/2026 | 10.0 | 99.95% | 5 mg → 8.41 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Clear Green Cap | 10/23/2025 | 10.0 | 99.95% | 40 mg → 41.2 mg | Krause Analytical | View |
| RetatrutideNo Label / Gold Crimp / Clear Cap | 10/5/2025 | 10.0 | 99.92% | 20 mg → 19.6 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 10/5/2025 | 10.0 | 99.7% | 30 mg → 28.8 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 10/5/2025 | 10.0 | 99.72% | 30 mg → 30.8 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Violet Cap | 10/3/2025 | 10.0 | 99.95% | 30 mg → 30.5 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 10/3/2025 | 10.0 | 99.76% | 5 mg → 5.27 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Violet Cap | 10/3/2025 | 10.0 | 99.95% | 30 mg → 31.9 mg | Krause Analytical | View |
| RetatrutideNo Label / Gold Crimp / Clear Cap | 8/12/2025 | 9.9 | 99.413% | 20 mg → 21.85 mg | Chromate | View |
About Rayshine Peptide Biochemicals
Finnrick has tested 12 samples from Rayshine Peptide Biochemicals across 2 products.