Crestpeptide reviews
4 independent lab tests across 1 product · 99.9% average purity
- 4 HPLC samples across 1 products
- Catalog avg purity 99.9%
- crestpeptide.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 4 measured samples from Crestpeptide, 1 came in more than 5% under the quantity on the label (25%). Another 1 measured more than 5% over. Purity across 4 readings ran from 99.9% to 99.95%, median 99.93%. Samples span Oct 2025 to Mar 2026.
- Under label
- 1/4
- Median purity
- 99.93%
- Latest sample
- Mar 2026
- Ships from
- China
more than 5% short
99.9%–99.95% range
first tested Oct 2025
per vendor listing
Lab testing results
Independent results across 1 product.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Retatrutide | AGREAT | 4 | 100.0% | 99.9% – 99.9% | 3/6/2026 | — | — |
Individual lab tests
Date
3/6/2026
Purity
99.9%
Quantity
30 mg → 27.4 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Green Cap
Date
12/29/2025
Purity
99.95%
Quantity
30 mg → 34.1 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Violet Cap
Date
12/6/2025
Purity
99.95%
Quantity
10 mg → 9.66 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Yellow Cap
Date
10/17/2025
Purity
99.9%
Quantity
15 mg → 14.5 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Red Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo Label / Silver Crimp / Green Cap | 3/6/2026 | 10.0 | 99.9% | 30 mg → 27.4 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Violet Cap | 12/29/2025 | 10.0 | 99.95% | 30 mg → 34.1 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Yellow Cap | 12/6/2025 | 10.0 | 99.95% | 10 mg → 9.66 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Red Cap | 10/17/2025 | 10.0 | 99.9% | 15 mg → 14.5 mg | Krause Analytical | View |
About Crestpeptide
Finnrick has tested 4 samples from Crestpeptide across 1 products.
Contact
- china
- crestpeptide.com