Expert Peptide reviews
9 independent lab tests across 2 products · 99.9% average purity
- 9 HPLC samples across 2 products
- Catalog avg purity 99.9%
- expertpeptide.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 9 measured samples from Expert Peptide, 3 came in more than 5% under the quantity on the label (33%). Another 3 measured more than 5% over. Purity across 9 readings ran from 99.8% to 99.9%, median 99.9%. Samples span Mar 2026 to Aug 2026.
- Under label
- 3/9
- Median purity
- 99.9%
- Latest sample
- Aug 2026
more than 5% short
99.8%–99.9% range
first tested Mar 2026
Lab testing results
Independent results across 2 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Tirzepatide | AGREAT | 4 | 100.0% | 99.8% – 99.9% | 8/3/2026 | — | — |
| Retatrutide | AGREAT | 5 | 100.0% | 99.8% – 99.9% | 7/22/2026 | — | — |
Individual lab tests
Date
8/3/2026
Purity
99.9%
Quantity
10 mg → 9.88 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Blue cap
Date
7/22/2026
Purity
99.9%
Quantity
20 mg → 26.1 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Clear Pink cap
Date
7/22/2026
Purity
99.9%
Quantity
10 mg → 9.71 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Blue cap
Date
6/26/2026
Purity
99.8%
Quantity
5 mg → 6.1 mg
Lab
BTLabs
Vial
Silver label / Silver crimp / Yellow cap
Date
6/16/2026
Purity
99.8%
Quantity
30 mg → 34.1 mg
Lab
BTLabs
Vial
No label / Silver crimp / Blue cap
Date
6/12/2026
Purity
99.9%
Quantity
15 mg → 12.5 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Blue cap
Date
4/23/2026
Purity
99.9%
Quantity
20 mg → 17.2 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Pink Cap
Date
3/25/2026
Purity
99.9%
Quantity
10 mg → 10.5 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Blue Cap
Date
3/12/2026
Purity
99.9%
Quantity
10 mg → 8.41 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideNo label / Silver crimp / Blue cap | 8/3/2026 | 10.0 | 99.9% | 10 mg → 9.88 mg | Krause Analytical | View |
| RetatrutideNo label / Silver crimp / Clear Pink cap | 7/22/2026 | 10.0 | 99.9% | 20 mg → 26.1 mg | Krause Analytical | View |
| TirzepatideNo label / Silver crimp / Blue cap | 7/22/2026 | 10.0 | 99.9% | 10 mg → 9.71 mg | Krause Analytical | View |
| RetatrutideSilver label / Silver crimp / Yellow cap | 6/26/2026 | 10.0 | 99.8% | 5 mg → 6.1 mg | BTLabs | View |
| TirzepatideNo label / Silver crimp / Blue cap | 6/16/2026 | 10.0 | 99.8% | 30 mg → 34.1 mg | BTLabs | View |
| RetatrutideNo label / Silver crimp / Blue cap | 6/12/2026 | 10.0 | 99.9% | 15 mg → 12.5 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Pink Cap | 4/23/2026 | 10.0 | 99.9% | 20 mg → 17.2 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 3/25/2026 | 10.0 | 99.9% | 10 mg → 10.5 mg | BTLabs | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 3/12/2026 | 10.0 | 99.9% | 10 mg → 8.41 mg | Krause Analytical | View |
About Expert Peptide
Finnrick has tested 9 samples from Expert Peptide across 2 products.