Yiwu Beigong reviews
4 independent lab tests across 1 product · 99.6% average purity
- 4 HPLC samples across 1 products
- Catalog avg purity 99.6%
- Whatsapp +44 7352 531259
- 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 4 measured samples from Yiwu Beigong, 2 came in more than 5% under the quantity on the label (50%). Purity across 4 readings ran from 99.14% to 99.9%, median 99.72%. Samples span Oct 2025 to Mar 2026.
- Under label
- 2/4
- Median purity
- 99.72%
- Latest sample
- Mar 2026
- Ships from
- China
more than 5% short
99.14%–99.9% range
first tested Oct 2025
per vendor listing
Lab testing results
Independent results across 1 product.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Retatrutide | COKAY | 4 | 75.0% | 99.1% – 99.9% | 3/6/2026 | — | — |
Individual lab tests
Date
3/6/2026
Purity
99.9%
Quantity
30 mg → 26.8 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
Date
1/7/2026
Purity
99.14%
Quantity
50 mg → 49.7 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Clear Green Cap
Date
10/9/2025
Purity
99.72%
Quantity
20 mg → 20.8 mg
Lab
Krause Analytical
Vial
No Label / Gold Crimp / Clear Cap
Date
10/5/2025
Purity
99.71%
Quantity
15 mg → 14.2 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Orange Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo Label / Silver Crimp / Blue Cap | 3/6/2026 | 10.0 | 99.9% | 30 mg → 26.8 mg | Krause Analytical | View |
| RetatrutideWhite Label / Silver Crimp / Clear Green Cap | 1/7/2026 | 9.9 | 99.14% | 50 mg → 49.7 mg | Krause Analytical | View |
| RetatrutideNo Label / Gold Crimp / Clear Cap | 10/9/2025 | 10.0 | 99.72% | 20 mg → 20.8 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Orange Cap | 10/5/2025 | 10.0 | 99.71% | 15 mg → 14.2 mg | Krause Analytical | View |
About Yiwu Beigong
Acording to whats app contact they can also be this company Huaian Hanyou Health Co., Ltd.