Peptide Crafters reviews
43 independent lab tests across 8 products · 99.0% average purity
- 43 HPLC samples across 8 products
- Catalog avg purity 99.0%
- PeptideCrafters.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 43 measured samples from Peptide Crafters, 5 came in more than 5% under the quantity on the label (12%). Another 29 measured more than 5% over. Purity across 43 readings ran from 91.41% to 99.96%, median 99.76%. Samples span Dec 2024 to Jun 2026.
- Under label
- 5/43
- Median purity
- 99.76%
- Latest sample
- Jun 2026
- Ships from
- United States
more than 5% short
91.41%–99.96% range
first tested Dec 2024
per vendor listing
Lab testing results
Independent results across 8 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Semaglutide | AGREAT | 10 | 100.0% | 99.5% – 99.9% | 3/20/2025 | — | — |
| TB-500 | AGREAT | 2 | 100.0% | 99.9% – 99.9% | 3/12/2026 | — | — |
| Ipamorelin | COKAY | 4 | 75.0% | 99.8% – 100.0% | 3/20/2025 | — | — |
| Retatrutide | COKAY | 7 | 71.4% | 99.2% – 99.9% | 6/1/2026 | — | — |
| Tirzepatide | DPOOR | 6 | 66.7% | 99.1% – 99.9% | 3/13/2026 | — | — |
| BPC-157 | EBAD | 6 | 50.0% | 98.0% – 99.9% | 12/29/2025 | — | — |
| Melanotan II | EBAD | 4 | 50.0% | 99.4% – 99.7% | 3/20/2025 | — | — |
| CJC-1295 | EBAD | 4 | % | 91.4% – 96.8% | 3/20/2025 | — | — |
Individual lab tests
Date
6/1/2026
Purity
99.9%
Quantity
10 mg → 10.5 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Green cap
Date
3/13/2026
Purity
99.7%
Quantity
18 mg → 20.6 mg
Lab
BTLabs
Vial
White Label / Silver Crimp / Blue Cap
Date
3/12/2026
Purity
99.9%
Quantity
10 mg → 8.81 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Blue Cap
Date
12/29/2025
Purity
99.95%
Quantity
10 mg → 9.92 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Red Cap
Date
12/16/2025
Purity
99.7%
Quantity
15 mg → 15.6 mg
Lab
BTLabs
Vial
White & Yellow Label / Silver Crimp / Red Cap
Date
3/20/2025
Purity
91.9%
Quantity
5 mg → 4.84 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Orange Cap
Date
3/20/2025
Purity
99.41%
Quantity
10 mg → 8.34 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Clear Blue Cap
Date
3/20/2025
Purity
99.47%
Quantity
10 mg → 8.18 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Clear Blue Cap
Date
3/20/2025
Purity
91.41%
Quantity
5 mg → 4.99 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Orange Cap
Date
3/20/2025
Purity
99.84%
Quantity
10 mg → 14.8 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Clear Cap
Date
3/20/2025
Purity
99.93%
Quantity
10 mg → 13.87 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
3/20/2025
Purity
99.75%
Quantity
5 mg → 5.04 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
3/20/2025
Purity
99.85%
Quantity
15 mg → 16.76 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Black Cap
Date
3/20/2025
Purity
99.39%
Quantity
10 mg → 13.75 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Purple Crimp / Clear Cap
Date
3/20/2025
Purity
99.89%
Quantity
15 mg → 17.68 mg
Lab
MZ Biolabs
Vial
Yellow, Black, White Label / Silver Crimp / Blue Cap
Date
3/10/2025
Purity
99.532%
Quantity
5 mg → 5.67 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
3/10/2025
Purity
99.796%
Quantity
5 mg → 5.54 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
3/5/2025
Purity
99.838%
Quantity
10 mg → 10.66 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Clear Cap
Date
3/3/2025
Purity
98.661%
Quantity
10 mg → 10.58 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Purple Crimp / Clear Cap
Date
3/2/2025
Purity
99.859%
Quantity
10 mg → 11.26 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Purple Crimp / Clear Cap
Date
3/2/2025
Purity
99.831%
Quantity
10 mg → 11.3 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Purple Crimp / Clear Cap
Date
2/28/2025
Purity
99.232%
Quantity
10 mg → 12.28 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
2/28/2025
Purity
99.581%
Quantity
10 mg → 13.13 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
2/28/2025
Purity
99.437%
Quantity
15 mg → 18.31 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Blue Cap
Date
2/28/2025
Purity
99.132%
Quantity
15 mg → 18.42 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Blue Cap
Date
2/28/2025
Purity
99.864%
Quantity
15 mg → 17.22 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Black Cap
Date
2/28/2025
Purity
96.682%
Quantity
5 mg → 5.76 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Orange Cap
Date
2/28/2025
Purity
96.757%
Quantity
5 mg → 5.75 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Orange Cap
Date
2/28/2025
Purity
99.961%
Quantity
10 mg → 10.44 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Clear Cap
Date
2/28/2025
Purity
99.948%
Quantity
15 mg → 16.86 mg
Lab
TrustPointe
Vial
Yellow, Black, White Label / Silver Crimp / Black Cap
Date
2/27/2025
Purity
99.873%
Quantity
10 mg → 11.55 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Clear Cap
Date
2/27/2025
Purity
99.732%
Quantity
10 mg → 9.05 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Clear Blue Cap
Date
2/27/2025
Purity
99.735%
Quantity
10 mg → 9.25 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Clear Blue Cap
Date
2/27/2025
Purity
99.906%
Quantity
15 mg → 16.64 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Black Cap
Date
2/27/2025
Purity
99.891%
Quantity
15 mg → 16.47 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Black Cap
Date
2/27/2025
Purity
99.753%
Quantity
10 mg → 12.57 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
2/27/2025
Purity
99.756%
Quantity
5 mg → 5.22 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Green Cap
Date
2/27/2025
Purity
99.925%
Quantity
15 mg → 19.19 mg
Lab
Chromate
Vial
Yellow, Black, White Label / Silver Crimp / Blue Cap
Date
12/17/2024
Purity
99.722%
Quantity
5 mg → 5.69 mg
Lab
Chromate
Vial
White, Black, Yellow Label / Silver Crimp / Yellow Cap
Date
12/17/2024
Purity
99.948%
Quantity
12 mg → 12.39 mg
Lab
Chromate
Vial
White, Black, Yellow Label / Gold Crimp / Clear Cap
Date
12/17/2024
Purity
99.783%
Quantity
10 mg → 10.97 mg
Lab
Chromate
Vial
White, Black, Yellow Label / Silver Crimp / White Cap
Date
12/17/2024
Purity
98.037%
Quantity
5 mg → 6.28 mg
Lab
Chromate
Vial
White, Black, Yellow Label / Red Crimp / Clear Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideWhite label / Silver crimp / Green cap | 6/1/2026 | 10.0 | 99.9% | 10 mg → 10.5 mg | Krause Analytical | View |
| TirzepatideWhite Label / Silver Crimp / Blue Cap | 3/13/2026 | 10.0 | 99.7% | 18 mg → 20.6 mg | BTLabs | View |
| TB-500White Label / Silver Crimp / Blue Cap | 3/12/2026 | 10.0 | 99.9% | 10 mg → 8.81 mg | Krause Analytical | View |
| TB-500White Label / Silver Crimp / Red Cap | 12/29/2025 | 10.0 | 99.95% | 10 mg → 9.92 mg | Krause Analytical | View |
| BPC-157 | 12/29/2025 | 10.0 | 99.94% | 10 mg → 11.4 mg | Krause Analytical | View |
| RetatrutideWhite & Yellow Label / Silver Crimp / Red Cap | 12/16/2025 | 10.0 | 99.7% | 15 mg → 15.6 mg | BTLabs | View |
| CJC-1295Yellow, Black, White Label / Silver Crimp / Orange Cap | 3/20/2025 | 9.2 | 91.9% | 5 mg → 4.84 mg | MZ Biolabs | View |
| Melanotan IIYellow, Black, White Label / Silver Crimp / Clear Blue Cap | 3/20/2025 | 9.9 | 99.41% | 10 mg → 8.34 mg | MZ Biolabs | View |
| Melanotan IIYellow, Black, White Label / Silver Crimp / Clear Blue Cap | 3/20/2025 | 9.9 | 99.47% | 10 mg → 8.18 mg | MZ Biolabs | View |
| CJC-1295Yellow, Black, White Label / Silver Crimp / Orange Cap | 3/20/2025 | 9.1 | 91.41% | 5 mg → 4.99 mg | MZ Biolabs | View |
| IpamorelinYellow, Black, White Label / Silver Crimp / Clear Cap | 3/20/2025 | 10.0 | 99.84% | 10 mg → 14.8 mg | MZ Biolabs | View |
| RetatrutideYellow, Black, White Label / Silver Crimp / Green Cap | 3/20/2025 | 10.0 | 99.93% | 10 mg → 13.87 mg | MZ Biolabs | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Green Cap | 3/20/2025 | 10.0 | 99.75% | 5 mg → 5.04 mg | MZ Biolabs | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Black Cap | 3/20/2025 | 10.0 | 99.85% | 15 mg → 16.76 mg | MZ Biolabs | View |
| BPC-157Yellow, Black, White Label / Purple Crimp / Clear Cap | 3/20/2025 | 9.9 | 99.39% | 10 mg → 13.75 mg | MZ Biolabs | View |
| TirzepatideYellow, Black, White Label / Silver Crimp / Blue Cap | 3/20/2025 | 10.0 | 99.89% | 15 mg → 17.68 mg | MZ Biolabs | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Green Cap | 3/10/2025 | 10.0 | 99.532% | 5 mg → 5.67 mg | TrustPointe | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Green Cap | 3/10/2025 | 10.0 | 99.796% | 5 mg → 5.54 mg | TrustPointe | View |
| IpamorelinYellow, Black, White Label / Silver Crimp / Clear Cap | 3/5/2025 | 10.0 | 99.838% | 10 mg → 10.66 mg | TrustPointe | View |
| BPC-157Yellow, Black, White Label / Purple Crimp / Clear Cap | 3/3/2025 | 9.9 | 98.661% | 10 mg → 10.58 mg | Chromate | View |
| BPC-157Yellow, Black, White Label / Purple Crimp / Clear Cap | 3/2/2025 | 10.0 | 99.859% | 10 mg → 11.26 mg | TrustPointe | View |
| BPC-157Yellow, Black, White Label / Purple Crimp / Clear Cap | 3/2/2025 | 10.0 | 99.831% | 10 mg → 11.3 mg | TrustPointe | View |
| RetatrutideYellow, Black, White Label / Silver Crimp / Green Cap | 2/28/2025 | 9.9 | 99.232% | 10 mg → 12.28 mg | TrustPointe | View |
| RetatrutideYellow, Black, White Label / Silver Crimp / Green Cap | 2/28/2025 | 10.0 | 99.581% | 10 mg → 13.13 mg | TrustPointe | View |
| TirzepatideYellow, Black, White Label / Silver Crimp / Blue Cap | 2/28/2025 | 9.9 | 99.437% | 15 mg → 18.31 mg | TrustPointe | View |
| TirzepatideYellow, Black, White Label / Silver Crimp / Blue Cap | 2/28/2025 | 9.9 | 99.132% | 15 mg → 18.42 mg | TrustPointe | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Black Cap | 2/28/2025 | 10.0 | 99.864% | 15 mg → 17.22 mg | TrustPointe | View |
| CJC-1295Yellow, Black, White Label / Silver Crimp / Orange Cap | 2/28/2025 | 9.7 | 96.682% | 5 mg → 5.76 mg | Chromate | View |
| CJC-1295Yellow, Black, White Label / Silver Crimp / Orange Cap | 2/28/2025 | 9.7 | 96.757% | 5 mg → 5.75 mg | Chromate | View |
| IpamorelinYellow, Black, White Label / Silver Crimp / Clear Cap | 2/28/2025 | 10.0 | 99.961% | 10 mg → 10.44 mg | TrustPointe | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Black Cap | 2/28/2025 | 10.0 | 99.948% | 15 mg → 16.86 mg | TrustPointe | View |
| IpamorelinYellow, Black, White Label / Silver Crimp / Clear Cap | 2/27/2025 | 10.0 | 99.873% | 10 mg → 11.55 mg | Chromate | View |
| Melanotan IIYellow, Black, White Label / Silver Crimp / Clear Blue Cap | 2/27/2025 | 10.0 | 99.732% | 10 mg → 9.05 mg | Chromate | View |
| Melanotan IIYellow, Black, White Label / Silver Crimp / Clear Blue Cap | 2/27/2025 | 10.0 | 99.735% | 10 mg → 9.25 mg | Chromate | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Black Cap | 2/27/2025 | 10.0 | 99.906% | 15 mg → 16.64 mg | Chromate | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Black Cap | 2/27/2025 | 10.0 | 99.891% | 15 mg → 16.47 mg | Chromate | View |
| RetatrutideYellow, Black, White Label / Silver Crimp / Green Cap | 2/27/2025 | 10.0 | 99.753% | 10 mg → 12.57 mg | Chromate | View |
| SemaglutideYellow, Black, White Label / Silver Crimp / Green Cap | 2/27/2025 | 10.0 | 99.756% | 5 mg → 5.22 mg | Chromate | View |
| TirzepatideYellow, Black, White Label / Silver Crimp / Blue Cap | 2/27/2025 | 10.0 | 99.925% | 15 mg → 19.19 mg | Chromate | View |
| SemaglutideWhite, Black, Yellow Label / Silver Crimp / Yellow Cap | 12/17/2024 | 10.0 | 99.722% | 5 mg → 5.69 mg | Chromate | View |
| RetatrutideWhite, Black, Yellow Label / Gold Crimp / Clear Cap | 12/17/2024 | 10.0 | 99.948% | 12 mg → 12.39 mg | Chromate | View |
| TirzepatideWhite, Black, Yellow Label / Silver Crimp / White Cap | 12/17/2024 | 10.0 | 99.783% | 10 mg → 10.97 mg | Chromate | View |
| BPC-157White, Black, Yellow Label / Red Crimp / Clear Cap | 12/17/2024 | 9.8 | 98.037% | 5 mg → 6.28 mg | Chromate | View |
About Peptide Crafters
Finnrick has tested 43 samples from Peptide Crafters across 8 products.