Is Zhejiang Yichenkang Biotechnology Legit
Is Zhejiang Yichenkang Biotechnology Legit? 58 independent lab tests across 8 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Lab record: Mixed
How we rate- 58 independent tests
- 28 of 50 lots filled to label
- Median purity 99.75%
- 3 of 8 products graded D or E
Some of Zhejiang Yichenkang Biotechnology's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Semaglutide
Zhejiang Yichenkang Biotechnology graded E. Pura Peptides's Semaglutide graded A across 1 test, $5.00 / mg.
Buy from Pura PeptidesAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Zhejiang Yichenkang Biotechnology graded D or E, these shops' samples of the same peptide graded A or B. Ordered by grade, then price per mg. Partner status never changes the order.
Semaglutide
Zhejiang Yichenkang Biotechnology: grade EBPC-157
Zhejiang Yichenkang Biotechnology: grade ETirzepatide
Zhejiang Yichenkang Biotechnology: grade DZhejiang Yichenkang Biotechnology products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open Zhejiang Yichenkang Biotechnology's site.
- IpamorelinAGREAT
- Tests
- 7
- Passed
- 100.0%
- CJC-1295BGOOD
- Tests
- 6
- Passed
- 80.0%
- RetatrutideCOKAY
- Tests
- 12
- Passed
- 72.7%
- Melanotan IICOKAY
- Tests
- 5
- Passed
- 75.0%
- GHK-CuCOKAY
- Tests
- 5
- Passed
- 75.0%
- TirzepatideDPOOR
- Tests
- 9
- Passed
- 62.5%
- SemaglutideEBAD
- Tests
- 7
- Passed
- 50.0%
- BPC-157EBAD
- Tests
- 7
- Passed
- 16.7%
What the testing shows
Across 50 measured samples from Zhejiang Yichenkang Biotechnology, 22 came in more than 5% under the quantity on the label (44%). Another 10 measured more than 5% over. Purity across 50 readings ran from 96.52% to 100%, median 99.75%. Samples span Jun 2025 to Dec 2025.
- Under label
- 22/50
- Median purity
- 99.75%
- Latest sample
- Dec 2025
- Ships from
- China
more than 5% short
96.52%–100% range
first tested Jun 2025
per vendor listing
Our read on Zhejiang Yichenkang Biotechnology
33 of Zhejiang Yichenkang Biotechnology's 50 graded samples passed (66%), and 12% of all samples were sent in by buyers rather than by the shop.
Results are slipping: 63% passed over the latest six months, down from 100% before.
When a sample failed, the most common reason was purity under 99.5% (16 times).
Against the 302 shops with at least five graded tests, Zhejiang Yichenkang Biotechnology's pass rate is at or above 33% of them, and it has more tests on record than 82% of them.
When and how Zhejiang Yichenkang Biotechnology was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (23), BTLabs (14), Chromate (13), Janoshik (7)
- Who sent the samples
- buyers 12%, testing programme 88%
- Batches covered
- 1 distinct batch numbers; 8 checked for endotoxins
Why Zhejiang Yichenkang Biotechnology's failed samples failed
The 6 most recent failed tests, with the lab's reason.
Retatrutide · Dec 2, 2025
purity under 99.5%
GHK-Cu · Sep 20, 2025
amount in the vial more than 35% off the label
Semaglutide · Aug 5, 2025
purity under 99.5%
Tirzepatide · Aug 5, 2025
purity under 99.5%
Retatrutide · Aug 5, 2025
purity under 99.5%
BPC-157 · Aug 4, 2025
purity under 99.5%
Lab testing results
Independent results across 8 products.
Individual lab tests
Date
12/11/2025
Purity
99.62%
Quantity
10 mg → 10.4 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Clear Blue Cap
Date
12/5/2025
Purity
99.5%
Quantity
10 mg → 9.4 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Yellow Cap
Date
12/2/2025
Purity
99.4%
Quantity
10 mg → 9.2 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Red Cap
Date
11/25/2025
Purity
99.95%
Quantity
10 mg → 9.95 mg
Lab
Krause Analytical
Vial
No Label / Blue Crimp / Blue Cap
Date
10/17/2025
Purity
99.95%
Quantity
40 mg → 40.6 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo Label / Silver Crimp / Clear Blue Cap | 12/11/2025 | 10.0 | 99.62% | 10 mg → 10.4 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Yellow Cap | 12/5/2025 | 9.9 | 99.5% | 10 mg → 9.4 mg | BTLabs | View |
| RetatrutideNo Label / Silver Crimp / Red Cap | 12/2/2025 | 9.9 | 99.4% | 10 mg → 9.2 mg | BTLabs | View |
| RetatrutideNo Label / Blue Crimp / Blue Cap | 11/25/2025 | 10.0 | 99.95% | 10 mg → 9.95 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 10/17/2025 | 10.0 | 99.95% | 40 mg → 40.6 mg | Krause Analytical | View |
Which Zhejiang Yichenkang Biotechnology products tested best
Ipamorelin and CJC-1295 have the strongest record, graded A or B.
Melanotan II, GHK-Cu and Retatrutide graded C.
Tirzepatide, Semaglutide and BPC-157 graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Zhejiang Yichenkang Biotechnology
If you order from Zhejiang Yichenkang Biotechnology, the A- and B-graded products are the safer picks on this record. For the weaker ones, the better-tested options on this page come from other shops.
We don't track Zhejiang Yichenkang Biotechnology's prices yet. Shipping, payment and refund terms are on their site.
The official store is hzyckswkj.en.alibaba.com/in_ID/index.html. Check the address before you pay.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
Track Zhejiang Yichenkang Biotechnology
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Zhejiang Yichenkang Biotechnology: common questions
Is Zhejiang Yichenkang Biotechnology legit?
We rate lab records, not businesses. Mixed lab record: 58 independent tests, 28 of 50 lots filled to label, median purity 99.75%, 3 of 8 products graded D or E. Each result links to its original certificate in the table above.
What do Zhejiang Yichenkang Biotechnology reviews say?
We don't hold scored customer reviews for Zhejiang Yichenkang Biotechnology yet. The independent lab results on this page are the evidence we have.
Which Zhejiang Yichenkang Biotechnology peptides tested best?
We have graded 8 Zhejiang Yichenkang Biotechnology products. Ipamorelin and CJC-1295 graded A or B. Tirzepatide, Semaglutide and BPC-157 graded D or E.
Is there a Zhejiang Yichenkang Biotechnology coupon code?
We don't have a verified Zhejiang Yichenkang Biotechnology coupon code. A discount changes the price, not what is in the vial.
Where does Zhejiang Yichenkang Biotechnology ship from?
Public listings place Zhejiang Yichenkang Biotechnology's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Zhejiang Yichenkang Biotechnology?
Mixed lab record: 58 independent tests, 28 of 50 lots filled to label, median purity 99.75%, 3 of 8 products graded D or E.
Contact
- Zhejiang, China
- hzyckswkj.en.alibaba.com/in_ID/index.html