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ZLZ Peptide
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Peptide Vendor
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Lab Testing Results
5
Products Tested
86
Total Tests
66.4%
Avg Purity
25.0%
Min Score
100.0%
Max Score
Tested Products
Retatrutide
COKAY
Tests47
Avg Score74.0%
Range44.0% - 100.0%
Latest: 11/23/2025
Tirzepatide
COKAY
Tests27
Avg Score74.0%
Range45.0% - 100.0%
Latest: 11/23/2025
Sermorelin
AGREAT
Tests2
Avg Score71.0%
Range66.0% - 75.0%
Latest: 10/3/2025
GHK-Cu
COKAY
Tests6
Avg Score64.0%
Range45.0% - 80.0%
Latest: 11/18/2025
Semaglutide
EBAD
Tests4
Avg Score49.0%
Range25.0% - 78.0%
Latest: 10/14/2025
| Product | Grade | Tests | Avg Score | Range | Latest Test |
|---|---|---|---|---|---|
| Retatrutide | COKAY | 47 | 74.0% | 44.0% - 100.0% | 11/23/2025 |
| Tirzepatide | COKAY | 27 | 74.0% | 45.0% - 100.0% | 11/23/2025 |
| Sermorelin | AGREAT | 2 | 71.0% | 66.0% - 75.0% | 10/3/2025 |
| GHK-Cu | COKAY | 6 | 64.0% | 45.0% - 80.0% | 11/18/2025 |
| Semaglutide | EBAD | 4 | 49.0% | 25.0% - 78.0% | 10/14/2025 |
Individual Lab Tests
RetatrutideScore: 4.4
Date11/23/2025
Purity99.9%
Quantity20mg → 33.200mg(+66%)
LabLab G
TirzepatideScore: 4.8
Date11/23/2025
Purity99.9%
Quantity20mg → 26.410mg(+32%)
LabLab G
TirzepatideScore: 4.5
Date11/23/2025
Purity99.8%
Quantity20mg → 28.800mg(+44%)
LabLab G
GHK-CuScore: 4.5
Date11/18/2025
Purity99.93%
Quantity50mg → 78.600mg(+57.2%)
LabLab E
TirzepatideScore: 7.4
Date11/18/2025
Purity99.66%
Quantity50mg → 49.700mg(-0.6%)
LabLab E
TirzepatideScore: 7.3
Date11/18/2025
Purity99.62%
Quantity50mg → 50.400mg(+0.8%)
LabLab E
GHK-CuScore: 8.0
Date11/17/2025
Purity99.95%
Quantity50mg → 48.800mg(-2.4%)
LabLab E
| Product | Date | Score | Purity | Quantity | Lab |
|---|---|---|---|---|---|
| Retatrutide | 11/23/2025 | 4.4 | 99.9% | 20mg → 33.200mg(+66%) | Lab G |
| Tirzepatide | 11/23/2025 | 4.8 | 99.9% | 20mg → 26.410mg(+32%) | Lab G |
| Tirzepatide | 11/23/2025 | 4.5 | 99.8% | 20mg → 28.800mg(+44%) | Lab G |
| GHK-Cu | 11/18/2025 | 4.5 | 99.93% | 50mg → 78.600mg(+57.2%) | Lab E |
| Tirzepatide | 11/18/2025 | 7.4 | 99.66% | 50mg → 49.700mg(-0.6%) | Lab E |
| Tirzepatide | 11/18/2025 | 7.3 | 99.62% | 50mg → 50.400mg(+0.8%) | Lab E |
| GHK-Cu | 11/17/2025 | 8.0 | 99.95% | 50mg → 48.800mg(-2.4%) | Lab E |
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