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Zhejiang Yichenkang Biotechnology
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Peptide Vendor
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Lab Testing Results
8
Products Tested
46
Total Tests
59.9%
Avg Purity
17.0%
Min Score
80.0%
Max Score
Tested Products
CJC-1295
BGOOD
Tests5
Avg Score70.0%
Range53.0% - 79.0%
Latest: 8/4/2025
Retatrutide
DPOOR
Tests8
Avg Score68.0%
Range33.0% - 80.0%
Latest: 10/17/2025
Tirzepatide
COKAY
Tests7
Avg Score64.0%
Range44.0% - 77.0%
Latest: 8/5/2025
Semaglutide
COKAY
Tests6
Avg Score62.0%
Range45.0% - 80.0%
Latest: 8/5/2025
Ipamorelin
COKAY
Tests6
Avg Score59.0%
Range41.0% - 80.0%
Latest: 9/5/2025
GHK-Cu
COKAY
Tests4
Avg Score55.0%
Range48.0% - 68.0%
Latest: 9/20/2025
Melanotan II
EBAD
Tests4
Avg Score53.0%
Range17.0% - 80.0%
Latest: 8/4/2025
BPC-157
EBAD
Tests6
Avg Score48.0%
Range18.0% - 68.0%
Latest: 8/4/2025
| Product | Grade | Tests | Avg Score | Range | Latest Test |
|---|---|---|---|---|---|
| CJC-1295 | BGOOD | 5 | 70.0% | 53.0% - 79.0% | 8/4/2025 |
| Retatrutide | DPOOR | 8 | 68.0% | 33.0% - 80.0% | 10/17/2025 |
| Tirzepatide | COKAY | 7 | 64.0% | 44.0% - 77.0% | 8/5/2025 |
| Semaglutide | COKAY | 6 | 62.0% | 45.0% - 80.0% | 8/5/2025 |
| Ipamorelin | COKAY | 6 | 59.0% | 41.0% - 80.0% | 9/5/2025 |
| GHK-Cu | COKAY | 4 | 55.0% | 48.0% - 68.0% | 9/20/2025 |
| Melanotan II | EBAD | 4 | 53.0% | 17.0% - 80.0% | 8/4/2025 |
| BPC-157 | EBAD | 6 | 48.0% | 18.0% - 68.0% | 8/4/2025 |
Individual Lab Tests
RetatrutideScore: 8.0
Date10/17/2025
Purity99.95%
Quantity40mg → 40.600mg(+1.5%)
LabLab E
GHK-CuScore: 4.9
Date9/20/2025
Purity100%
Quantity50mg → 34.600mg(-30.8%)
LabLab G
GHK-CuScore: 4.8
Date9/20/2025
Purity100%
Quantity50mg → 31.200mg(-37.6%)
LabLab G
IpamorelinScore: 5.5
Date9/5/2025
Purity99.7%
Quantity5mg → 5.600mg(+12%)
LabLab G
IpamorelinScore: 8.0
Date9/5/2025
Purity100%
Quantity5mg → 5.100mg(+2%)
LabLab G
RetatrutideScore: 5.3
Date8/5/2025
Purity99.29%
Quantity5mg → 5.450mg(+9%)
LabLab D
TirzepatideScore: 6.9
Date8/5/2025
Purity99.46%
Quantity5mg → 4.790mg(-4.2%)
LabLab D
SemaglutideScore: 4.6
Date8/5/2025
Purity99.11%
Quantity5mg → 4.480mg(-10.4%)
LabLab D
Melanotan IIScore: 5.3
Date8/4/2025
Purity99.78%
Quantity5mg → 4.240mg(-15.2%)
LabLab D
CJC-1295Score: 6.3
Date8/4/2025
Purity99.13%
Quantity5mg → 5.230mg(+4.6%)
LabLab D
RetatrutideScore: 7.7
Date8/4/2025
Purity99.94%
Quantity20mg → 18.800mg(-6%)
LabLab E
BPC-157Score: 4.7
Date8/4/2025
Purity99.46%
Quantity5mg → 5.680mg(+13.6%)
LabLab D
IpamorelinScore: 4.1
Date8/4/2025
Purity99.55%
Quantity5mg → 6.150mg(+23%)
LabLab D
BPC-157Score: 1.8
Date7/25/2025
Purity97%
Quantity5mg → 6.800mg(+36%)
LabLab G
BPC-157Score: 2.7
Date7/25/2025
Purity99%
Quantity5mg → 7.100mg(+42%)
LabLab G
TirzepatideScore: 7.7
Date7/24/2025
Purity100%
Quantity5mg → 4.700mg(-6%)
LabLab G
TirzepatideScore: 7.7
Date7/24/2025
Purity100%
Quantity5mg → 4.700mg(-6%)
LabLab G
RetatrutideScore: 8.0
Date7/23/2025
Purity100%
Quantity5mg → 4.800mg(-4%)
LabLab G
RetatrutideScore: 7.7
Date7/23/2025
Purity100%
Quantity5mg → 5.300mg(+6%)
LabLab G
SemaglutideScore: 8.0
Date7/22/2025
Purity100%
Quantity5mg → 5.000mg
LabLab G
SemaglutideScore: 7.7
Date7/22/2025
Purity100%
Quantity5mg → 4.700mg(-6%)
LabLab G
Melanotan IIScore:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
IpamorelinScore:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
TirzepatideScore:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
GHK-CuScore:
Date7/11/2025
Purity-
Quantity50mg → n/a
LabLab E
SemaglutideScore:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
RetatrutideScore:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
BPC-157Score:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
CJC-1295Score:
Date7/11/2025
Purity-
Quantity5mg → n/a
LabLab E
GHK-CuScore: 5.8
Date7/10/2025
Purity99.86%
Quantity50mg → 43.500mg(-13%)
LabLab E
GHK-CuScore: 6.8
Date7/10/2025
Purity99.95%
Quantity50mg → 45.500mg(-9%)
LabLab E
CJC-1295Score: 5.3
Date7/10/2025
Purity99.59%
Quantity5mg → 5.586mg(+11.7%)
LabLab A
TirzepatideScore: 4.4
Date6/30/2025
Purity99.69%
Quantity5mg → 3.750mg(-25%)
LabLab E
SemaglutideScore: 4.5
Date6/29/2025
Purity99.28%
Quantity5mg → 4.360mg(-12.8%)
LabLab E
SemaglutideScore: 4.7
Date6/29/2025
Purity99.37%
Quantity5mg → 4.390mg(-12.2%)
LabLab E
Melanotan IIScore: 1.7
Date6/26/2025
Purity96.52%
Quantity5mg → 2.747mg(-45.1%)
LabLab A
Melanotan IIScore: 6.1
Date6/26/2025
Purity99.8%
Quantity5mg → 4.472mg(-10.6%)
LabLab A
BPC-157Score: 6.8
Date6/26/2025
Purity99.42%
Quantity5mg → 4.955mg(-0.9%)
LabLab A
IpamorelinScore: 6.1
Date6/26/2025
Purity99.92%
Quantity5mg → 4.429mg(-11.4%)
LabLab A
CJC-1295Score: 7.8
Date6/25/2025
Purity99.81%
Quantity5mg → 4.991mg(-0.2%)
LabLab A
TirzepatideScore: 6.6
Date6/25/2025
Purity99.31%
Quantity5mg → 4.827mg(-3.5%)
LabLab A
TirzepatideScore: 6.1
Date6/25/2025
Purity99.26%
Quantity5mg → 4.689mg(-6.2%)
LabLab A
BPC-157Score: 6.8
Date6/25/2025
Purity99.42%
Quantity5mg → 5.023mg(+0.5%)
LabLab A
RetatrutideScore: 7.4
Date6/25/2025
Purity99.67%
Quantity5mg → 4.981mg(-0.4%)
LabLab A
RetatrutideScore: 7.2
Date6/25/2025
Purity99.59%
Quantity5mg → 5.186mg(+3.7%)
LabLab A
CJC-1295Score: 7.7
Date6/25/2025
Purity99.8%
Quantity5mg → 4.939mg(-1.2%)
LabLab A
IpamorelinScore: 5.3
Date6/25/2025
Purity99.79%
Quantity5mg → 5.754mg(+15.1%)
LabLab A
SemaglutideScore: 7.9
Date6/14/2025
Purity99.86%
Quantity5mg → 4.900mg(-2%)
LabLab F
RetatrutideScore: 3.3
Date6/11/2025
Purity99.16%
Quantity5mg → 4.010mg(-19.8%)
LabLab E
TirzepatideScore: 5.1
Date6/11/2025
Purity99.72%
Quantity5mg → 4.210mg(-15.8%)
LabLab E
IpamorelinScore: 6.3
Date6/10/2025
Purity99.96%
Quantity5mg → 5.540mg(+10.8%)
LabLab E
Melanotan IIScore: 8.0
Date6/10/2025
Purity99.95%
Quantity5mg → 4.760mg(-4.8%)
LabLab E
CJC-1295Score: 7.9
Date6/10/2025
Purity99.85%
Quantity5mg → 5.010mg(+0.2%)
LabLab E
BPC-157Score: 5.7
Date6/10/2025
Purity99.96%
Quantity5mg → 4.260mg(-14.8%)
LabLab E
| Product | Date | Score | Purity | Quantity | Lab |
|---|---|---|---|---|---|
| Retatrutide | 10/17/2025 | 8.0 | 99.95% | 40mg → 40.600mg(+1.5%) | Lab E |
| GHK-Cu | 9/20/2025 | 4.9 | 100% | 50mg → 34.600mg(-30.8%) | Lab G |
| GHK-Cu | 9/20/2025 | 4.8 | 100% | 50mg → 31.200mg(-37.6%) | Lab G |
| Ipamorelin | 9/5/2025 | 5.5 | 99.7% | 5mg → 5.600mg(+12%) | Lab G |
| Ipamorelin | 9/5/2025 | 8.0 | 100% | 5mg → 5.100mg(+2%) | Lab G |
| Retatrutide | 8/5/2025 | 5.3 | 99.29% | 5mg → 5.450mg(+9%) | Lab D |
| Tirzepatide | 8/5/2025 | 6.9 | 99.46% | 5mg → 4.790mg(-4.2%) | Lab D |
| Semaglutide | 8/5/2025 | 4.6 | 99.11% | 5mg → 4.480mg(-10.4%) | Lab D |
| Melanotan II | 8/4/2025 | 5.3 | 99.78% | 5mg → 4.240mg(-15.2%) | Lab D |
| CJC-1295 | 8/4/2025 | 6.3 | 99.13% | 5mg → 5.230mg(+4.6%) | Lab D |
| Retatrutide | 8/4/2025 | 7.7 | 99.94% | 20mg → 18.800mg(-6%) | Lab E |
| BPC-157 | 8/4/2025 | 4.7 | 99.46% | 5mg → 5.680mg(+13.6%) | Lab D |
| Ipamorelin | 8/4/2025 | 4.1 | 99.55% | 5mg → 6.150mg(+23%) | Lab D |
| BPC-157 | 7/25/2025 | 1.8 | 97% | 5mg → 6.800mg(+36%) | Lab G |
| BPC-157 | 7/25/2025 | 2.7 | 99% | 5mg → 7.100mg(+42%) | Lab G |
| Tirzepatide | 7/24/2025 | 7.7 | 100% | 5mg → 4.700mg(-6%) | Lab G |
| Tirzepatide | 7/24/2025 | 7.7 | 100% | 5mg → 4.700mg(-6%) | Lab G |
| Retatrutide | 7/23/2025 | 8.0 | 100% | 5mg → 4.800mg(-4%) | Lab G |
| Retatrutide | 7/23/2025 | 7.7 | 100% | 5mg → 5.300mg(+6%) | Lab G |
| Semaglutide | 7/22/2025 | 8.0 | 100% | 5mg → 5.000mg | Lab G |
| Semaglutide | 7/22/2025 | 7.7 | 100% | 5mg → 4.700mg(-6%) | Lab G |
| Melanotan II | 7/11/2025 | - | 5mg → n/a | Lab E | |
| Ipamorelin | 7/11/2025 | - | 5mg → n/a | Lab E | |
| Tirzepatide | 7/11/2025 | - | 5mg → n/a | Lab E | |
| GHK-Cu | 7/11/2025 | - | 50mg → n/a | Lab E | |
| Semaglutide | 7/11/2025 | - | 5mg → n/a | Lab E | |
| Retatrutide | 7/11/2025 | - | 5mg → n/a | Lab E | |
| BPC-157 | 7/11/2025 | - | 5mg → n/a | Lab E | |
| CJC-1295 | 7/11/2025 | - | 5mg → n/a | Lab E | |
| GHK-Cu | 7/10/2025 | 5.8 | 99.86% | 50mg → 43.500mg(-13%) | Lab E |
| GHK-Cu | 7/10/2025 | 6.8 | 99.95% | 50mg → 45.500mg(-9%) | Lab E |
| CJC-1295 | 7/10/2025 | 5.3 | 99.59% | 5mg → 5.586mg(+11.7%) | Lab A |
| Tirzepatide | 6/30/2025 | 4.4 | 99.69% | 5mg → 3.750mg(-25%) | Lab E |
| Semaglutide | 6/29/2025 | 4.5 | 99.28% | 5mg → 4.360mg(-12.8%) | Lab E |
| Semaglutide | 6/29/2025 | 4.7 | 99.37% | 5mg → 4.390mg(-12.2%) | Lab E |
| Melanotan II | 6/26/2025 | 1.7 | 96.52% | 5mg → 2.747mg(-45.1%) | Lab A |
| Melanotan II | 6/26/2025 | 6.1 | 99.8% | 5mg → 4.472mg(-10.6%) | Lab A |
| BPC-157 | 6/26/2025 | 6.8 | 99.42% | 5mg → 4.955mg(-0.9%) | Lab A |
| Ipamorelin | 6/26/2025 | 6.1 | 99.92% | 5mg → 4.429mg(-11.4%) | Lab A |
| CJC-1295 | 6/25/2025 | 7.8 | 99.81% | 5mg → 4.991mg(-0.2%) | Lab A |
| Tirzepatide | 6/25/2025 | 6.6 | 99.31% | 5mg → 4.827mg(-3.5%) | Lab A |
| Tirzepatide | 6/25/2025 | 6.1 | 99.26% | 5mg → 4.689mg(-6.2%) | Lab A |
| BPC-157 | 6/25/2025 | 6.8 | 99.42% | 5mg → 5.023mg(+0.5%) | Lab A |
| Retatrutide | 6/25/2025 | 7.4 | 99.67% | 5mg → 4.981mg(-0.4%) | Lab A |
| Retatrutide | 6/25/2025 | 7.2 | 99.59% | 5mg → 5.186mg(+3.7%) | Lab A |
| CJC-1295 | 6/25/2025 | 7.7 | 99.8% | 5mg → 4.939mg(-1.2%) | Lab A |
| Ipamorelin | 6/25/2025 | 5.3 | 99.79% | 5mg → 5.754mg(+15.1%) | Lab A |
| Semaglutide | 6/14/2025 | 7.9 | 99.86% | 5mg → 4.900mg(-2%) | Lab F |
| Retatrutide | 6/11/2025 | 3.3 | 99.16% | 5mg → 4.010mg(-19.8%) | Lab E |
| Tirzepatide | 6/11/2025 | 5.1 | 99.72% | 5mg → 4.210mg(-15.8%) | Lab E |
| Ipamorelin | 6/10/2025 | 6.3 | 99.96% | 5mg → 5.540mg(+10.8%) | Lab E |
| Melanotan II | 6/10/2025 | 8.0 | 99.95% | 5mg → 4.760mg(-4.8%) | Lab E |
| CJC-1295 | 6/10/2025 | 7.9 | 99.85% | 5mg → 5.010mg(+0.2%) | Lab E |
| BPC-157 | 6/10/2025 | 5.7 | 99.96% | 5mg → 4.260mg(-14.8%) | Lab E |
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