M-Peptides reviews
22 independent lab tests across 2 products · 99.1% average purity
- 22 HPLC samples across 2 products
- Catalog avg purity 99.1%
- discord.gg/qH8GJfRqXk https://t.me/MPeptidesScience https://mpeptidesscience.com
- Independent testing, no pay-to-rank
Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Track M-Peptides
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
What the testing shows
Across 22 measured samples from M-Peptides, 4 came in more than 5% under the quantity on the label (18%). Another 7 measured more than 5% over. Purity across 22 readings ran from 91.9% to 99.95%, median 99.81%. Samples span Jun 2025 to Jun 2026.
- Under label
- 4/22
- Median purity
- 99.81%
- Latest sample
- Jun 2026
more than 5% short
91.9%–99.95% range
first tested Jun 2025
Lab testing results
Independent results across 2 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Tirzepatide | BGOOD | 13 | 84.6% | 97.1% – 99.9% | 6/22/2026 | — | — |
| Retatrutide | EBAD | 9 | 44.4% | 91.9% – 99.9% | 6/22/2026 | — | — |
Individual lab tests
Date
6/22/2026
Purity
99.9%
Quantity
15 mg → 15.3 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Red cap
Date
6/22/2026
Purity
91.9%
Quantity
20 mg → 20.7 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Blue Cap
Date
6/12/2026
Purity
99.9%
Quantity
60 mg → 56.1 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Yellow cap
Date
5/27/2026
Purity
99.9%
Quantity
15 mg → 16.9 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Red cap
Date
3/18/2026
Purity
99.9%
Quantity
15 mg → 13.7 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
3/4/2026
Purity
99.8%
Quantity
15 mg → 15.2 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Red Cap
Date
2/18/2026
Purity
99.9%
Quantity
15 mg → 9.08 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
1/7/2026
Purity
99.14%
Quantity
15 mg → 15 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
1/7/2026
Purity
99.8%
Quantity
30 mg → 34.3 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Pink Cap
Date
12/29/2025
Purity
99.8%
Quantity
60 mg → 65.2 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Yellow Cap
Date
11/25/2025
Purity
97.06%
Quantity
60 mg → 61 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Yellow Cap
Date
10/29/2025
Purity
99.95%
Quantity
15 mg → 14.8 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
10/23/2025
Purity
99.3%
Quantity
15 mg → 15 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
10/21/2025
Purity
99.8%
Quantity
15 mg → 16.7 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Red Cap
Date
10/21/2025
Purity
99.7%
Quantity
15 mg → 17.4 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Black Cap
Date
9/4/2025
Purity
99.84%
Quantity
60 mg → 63.3 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Yellow Cap
Date
7/25/2025
Purity
99.85%
Quantity
30 mg → 30.1 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Pink Cap
Date
7/2/2025
Purity
99.16%
Quantity
50 mg → 48.6 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Yellow Cap
Date
6/20/2025
Purity
99.82%
Quantity
60 mg → 52 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Yellow Cap
Date
6/20/2025
Purity
99.83%
Quantity
40 mg → 41.7 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Orange Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideNo label / Silver crimp / Red cap | 6/22/2026 | 10.0 | 99.9% | 15 mg → 15.3 mg | Krause Analytical | View |
| RetatrutideWhite Label / Silver Crimp / Blue Cap | 6/22/2026 | 9.2 | 91.9% | 20 mg → 20.7 mg | Krause Analytical | View |
| TirzepatideNo label / Silver crimp / Yellow cap | 6/12/2026 | 10.0 | 99.9% | 60 mg → 56.1 mg | Krause Analytical | View |
| TirzepatideNo label / Silver crimp / Red cap | 5/27/2026 | 10.0 | 99.9% | 15 mg → 16.9 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 3/18/2026 | 10.0 | 99.9% | 15 mg → 13.7 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Red Cap | 3/4/2026 | 10.0 | 99.8% | 15 mg → 15.2 mg | BTLabs | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 2/18/2026 | 10.0 | 99.9% | 15 mg → 9.08 mg | Krause Analytical | View |
| Retatrutide | 2/11/2026 | 10.0 | 99.9% | 15 mg → 17 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 1/7/2026 | 9.9 | 99.14% | 15 mg → 15 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Pink Cap | 1/7/2026 | 10.0 | 99.8% | 30 mg → 34.3 mg | BTLabs | View |
| TirzepatideNo Label / Silver Crimp / Yellow Cap | 12/29/2025 | 10.0 | 99.8% | 60 mg → 65.2 mg | BTLabs | View |
| TirzepatideNo Label / Silver Crimp / Yellow Cap | 11/25/2025 | 9.7 | 97.06% | 60 mg → 61 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 10/29/2025 | 10.0 | 99.95% | 15 mg → 14.8 mg | Krause Analytical | View |
| Retatrutide | 10/23/2025 | 9.9 | 98.74% | 50 mg → 52.1 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 10/23/2025 | 9.9 | 99.3% | 15 mg → 15 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Red Cap | 10/21/2025 | 10.0 | 99.8% | 15 mg → 16.7 mg | BTLabs | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 10/21/2025 | 10.0 | 99.7% | 15 mg → 17.4 mg | BTLabs | View |
| TirzepatideWhite Label / Silver Crimp / Yellow Cap | 9/4/2025 | 10.0 | 99.84% | 60 mg → 63.3 mg | Krause Analytical | View |
| TirzepatideWhite Label / Silver Crimp / Pink Cap | 7/25/2025 | 10.0 | 99.85% | 30 mg → 30.1 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Yellow Cap | 7/2/2025 | 9.9 | 99.16% | 50 mg → 48.6 mg | Krause Analytical | View |
| TirzepatideWhite Label / Silver Crimp / Yellow Cap | 6/20/2025 | 10.0 | 99.82% | 60 mg → 52 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Orange Cap | 6/20/2025 | 10.0 | 99.83% | 40 mg → 41.7 mg | Krause Analytical | View |
About M-Peptides
Discord Vendor elsa@mps-m.com