Zhejiang Yichenkang Biotechnology
Peptide Vendor. Lab-tested. Independently scored.
- 46 HPLC samples across 8 products
- Catalog avg purity 59.9%
- Independent testing, no pay-to-rank
Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Lab testing results
Independent results across 8 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| 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
Date
10/17/2025
Purity
99.95%
Quantity
40mg → 40.600mg
Lab
Lab E
Date
9/20/2025
Purity
100%
Quantity
50mg → 34.600mg
Lab
Lab G
Date
9/20/2025
Purity
100%
Quantity
50mg → 31.200mg
Lab
Lab G
Date
9/5/2025
Purity
99.7%
Quantity
5mg → 5.600mg
Lab
Lab G
Date
9/5/2025
Purity
100%
Quantity
5mg → 5.100mg
Lab
Lab G
Date
8/5/2025
Purity
99.29%
Quantity
5mg → 5.450mg
Lab
Lab D
Date
8/5/2025
Purity
99.46%
Quantity
5mg → 4.790mg
Lab
Lab D
Date
8/5/2025
Purity
99.11%
Quantity
5mg → 4.480mg
Lab
Lab D
Date
8/4/2025
Purity
99.78%
Quantity
5mg → 4.240mg
Lab
Lab D
Date
8/4/2025
Purity
99.13%
Quantity
5mg → 5.230mg
Lab
Lab D
Date
8/4/2025
Purity
99.94%
Quantity
20mg → 18.800mg
Lab
Lab E
Date
8/4/2025
Purity
99.46%
Quantity
5mg → 5.680mg
Lab
Lab D
Date
8/4/2025
Purity
99.55%
Quantity
5mg → 6.150mg
Lab
Lab D
Date
7/25/2025
Purity
97%
Quantity
5mg → 6.800mg
Lab
Lab G
Date
7/25/2025
Purity
99%
Quantity
5mg → 7.100mg
Lab
Lab G
Date
7/24/2025
Purity
100%
Quantity
5mg → 4.700mg
Lab
Lab G
Date
7/24/2025
Purity
100%
Quantity
5mg → 4.700mg
Lab
Lab G
Date
7/23/2025
Purity
100%
Quantity
5mg → 4.800mg
Lab
Lab G
Date
7/23/2025
Purity
100%
Quantity
5mg → 5.300mg
Lab
Lab G
Date
7/22/2025
Purity
100%
Quantity
5mg → 5.000mg
Lab
Lab G
Date
7/22/2025
Purity
100%
Quantity
5mg → 4.700mg
Lab
Lab G
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
50mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/11/2025
Purity
—
Quantity
5mg → n/a
Lab
Lab E
Date
7/10/2025
Purity
99.86%
Quantity
50mg → 43.500mg
Lab
Lab E
Date
7/10/2025
Purity
99.95%
Quantity
50mg → 45.500mg
Lab
Lab E
Date
7/10/2025
Purity
99.59%
Quantity
5mg → 5.586mg
Lab
Lab A
Date
6/30/2025
Purity
99.69%
Quantity
5mg → 3.750mg
Lab
Lab E
Date
6/29/2025
Purity
99.28%
Quantity
5mg → 4.360mg
Lab
Lab E
Date
6/29/2025
Purity
99.37%
Quantity
5mg → 4.390mg
Lab
Lab E
Date
6/26/2025
Purity
96.52%
Quantity
5mg → 2.747mg
Lab
Lab A
Date
6/26/2025
Purity
99.8%
Quantity
5mg → 4.472mg
Lab
Lab A
Date
6/26/2025
Purity
99.42%
Quantity
5mg → 4.955mg
Lab
Lab A
Date
6/26/2025
Purity
99.92%
Quantity
5mg → 4.429mg
Lab
Lab A
Date
6/25/2025
Purity
99.81%
Quantity
5mg → 4.991mg
Lab
Lab A
Date
6/25/2025
Purity
99.31%
Quantity
5mg → 4.827mg
Lab
Lab A
Date
6/25/2025
Purity
99.26%
Quantity
5mg → 4.689mg
Lab
Lab A
Date
6/25/2025
Purity
99.42%
Quantity
5mg → 5.023mg
Lab
Lab A
Date
6/25/2025
Purity
99.67%
Quantity
5mg → 4.981mg
Lab
Lab A
Date
6/25/2025
Purity
99.59%
Quantity
5mg → 5.186mg
Lab
Lab A
Date
6/25/2025
Purity
99.8%
Quantity
5mg → 4.939mg
Lab
Lab A
Date
6/25/2025
Purity
99.79%
Quantity
5mg → 5.754mg
Lab
Lab A
Date
6/14/2025
Purity
99.86%
Quantity
5mg → 4.900mg
Lab
Lab F
Date
6/11/2025
Purity
99.16%
Quantity
5mg → 4.010mg
Lab
Lab E
Date
6/11/2025
Purity
99.72%
Quantity
5mg → 4.210mg
Lab
Lab E
Date
6/10/2025
Purity
99.96%
Quantity
5mg → 5.540mg
Lab
Lab E
Date
6/10/2025
Purity
99.95%
Quantity
5mg → 4.760mg
Lab
Lab E
Date
6/10/2025
Purity
99.85%
Quantity
5mg → 5.010mg
Lab
Lab E
Date
6/10/2025
Purity
99.96%
Quantity
5mg → 4.260mg
Lab
Lab E
| Product | Date | Score | Purity | Quantity | Lab |
|---|---|---|---|---|---|
| Retatrutide | 10/17/2025 | 8.0 | 99.95% | 40mg → 40.600mg | Lab E |
| GHK-Cu | 9/20/2025 | 4.9 | 100% | 50mg → 34.600mg | Lab G |
| GHK-Cu | 9/20/2025 | 4.8 | 100% | 50mg → 31.200mg | Lab G |
| Ipamorelin | 9/5/2025 | 5.5 | 99.7% | 5mg → 5.600mg | Lab G |
| Ipamorelin | 9/5/2025 | 8.0 | 100% | 5mg → 5.100mg | Lab G |
| Retatrutide | 8/5/2025 | 5.3 | 99.29% | 5mg → 5.450mg | Lab D |
| Tirzepatide | 8/5/2025 | 6.9 | 99.46% | 5mg → 4.790mg | Lab D |
| Semaglutide | 8/5/2025 | 4.6 | 99.11% | 5mg → 4.480mg | Lab D |
| Melanotan II | 8/4/2025 | 5.3 | 99.78% | 5mg → 4.240mg | Lab D |
| CJC-1295 | 8/4/2025 | 6.3 | 99.13% | 5mg → 5.230mg | Lab D |
| Retatrutide | 8/4/2025 | 7.7 | 99.94% | 20mg → 18.800mg | Lab E |
| BPC-157 | 8/4/2025 | 4.7 | 99.46% | 5mg → 5.680mg | Lab D |
| Ipamorelin | 8/4/2025 | 4.1 | 99.55% | 5mg → 6.150mg | Lab D |
| BPC-157 | 7/25/2025 | 1.8 | 97% | 5mg → 6.800mg | Lab G |
| BPC-157 | 7/25/2025 | 2.7 | 99% | 5mg → 7.100mg | Lab G |
| Tirzepatide | 7/24/2025 | 7.7 | 100% | 5mg → 4.700mg | Lab G |
| Tirzepatide | 7/24/2025 | 7.7 | 100% | 5mg → 4.700mg | Lab G |
| Retatrutide | 7/23/2025 | 8.0 | 100% | 5mg → 4.800mg | Lab G |
| Retatrutide | 7/23/2025 | 7.7 | 100% | 5mg → 5.300mg | Lab G |
| Semaglutide | 7/22/2025 | 8.0 | 100% | 5mg → 5.000mg | Lab G |
| Semaglutide | 7/22/2025 | 7.7 | 100% | 5mg → 4.700mg | 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 | Lab E |
| GHK-Cu | 7/10/2025 | 6.8 | 99.95% | 50mg → 45.500mg | Lab E |
| CJC-1295 | 7/10/2025 | 5.3 | 99.59% | 5mg → 5.586mg | Lab A |
| Tirzepatide | 6/30/2025 | 4.4 | 99.69% | 5mg → 3.750mg | Lab E |
| Semaglutide | 6/29/2025 | 4.5 | 99.28% | 5mg → 4.360mg | Lab E |
| Semaglutide | 6/29/2025 | 4.7 | 99.37% | 5mg → 4.390mg | Lab E |
| Melanotan II | 6/26/2025 | 1.7 | 96.52% | 5mg → 2.747mg | Lab A |
| Melanotan II | 6/26/2025 | 6.1 | 99.8% | 5mg → 4.472mg | Lab A |
| BPC-157 | 6/26/2025 | 6.8 | 99.42% | 5mg → 4.955mg | Lab A |
| Ipamorelin | 6/26/2025 | 6.1 | 99.92% | 5mg → 4.429mg | Lab A |
| CJC-1295 | 6/25/2025 | 7.8 | 99.81% | 5mg → 4.991mg | Lab A |
| Tirzepatide | 6/25/2025 | 6.6 | 99.31% | 5mg → 4.827mg | Lab A |
| Tirzepatide | 6/25/2025 | 6.1 | 99.26% | 5mg → 4.689mg | Lab A |
| BPC-157 | 6/25/2025 | 6.8 | 99.42% | 5mg → 5.023mg | Lab A |
| Retatrutide | 6/25/2025 | 7.4 | 99.67% | 5mg → 4.981mg | Lab A |
| Retatrutide | 6/25/2025 | 7.2 | 99.59% | 5mg → 5.186mg | Lab A |
| CJC-1295 | 6/25/2025 | 7.7 | 99.8% | 5mg → 4.939mg | Lab A |
| Ipamorelin | 6/25/2025 | 5.3 | 99.79% | 5mg → 5.754mg | Lab A |
| Semaglutide | 6/14/2025 | 7.9 | 99.86% | 5mg → 4.900mg | Lab F |
| Retatrutide | 6/11/2025 | 3.3 | 99.16% | 5mg → 4.010mg | Lab E |
| Tirzepatide | 6/11/2025 | 5.1 | 99.72% | 5mg → 4.210mg | Lab E |
| Ipamorelin | 6/10/2025 | 6.3 | 99.96% | 5mg → 5.540mg | Lab E |
| Melanotan II | 6/10/2025 | 8.0 | 99.95% | 5mg → 4.760mg | Lab E |
| CJC-1295 | 6/10/2025 | 7.9 | 99.85% | 5mg → 5.010mg | Lab E |
| BPC-157 | 6/10/2025 | 5.7 | 99.96% | 5mg → 4.260mg | Lab E |
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