Yidan Biotech reviews
11 independent lab tests across 2 products · 99.6% average purity
- 11 HPLC samples across 2 products
- Catalog avg purity 99.6%
- www.yidanbio.com
- 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 11 measured samples from Yidan Biotech, 3 came in more than 5% under the quantity on the label (27%). Another 1 measured more than 5% over. Purity across 11 readings ran from 98.01% to 99.9%, median 99.9%. Samples span Jan 2026 to Aug 2026.
- Under label
- 3/11
- Median purity
- 99.9%
- Latest sample
- Aug 2026
more than 5% short
98.01%–99.9% range
first tested Jan 2026
Lab testing results
Independent results across 2 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Retatrutide | BGOOD | 6 | 83.3% | 98.0% – 99.9% | 7/30/2026 | — | — |
| Tirzepatide | BGOOD | 5 | 80.0% | 98.8% – 99.9% | 8/5/2026 | — | — |
Individual lab tests
Date
8/5/2026
Purity
99.9%
Quantity
50 mg → 51.3 mg
Lab
Krause Analytical
Vial
No label, Silver crimp, Clear Yellow cap
Date
7/30/2026
Purity
99.8%
Quantity
15 mg → 15.4 mg
Lab
BTLabs
Vial
No label, Copper crimp, Clear cap
Date
7/17/2026
Purity
99.9%
Quantity
30 mg → 27.2 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Red cap
Date
6/12/2026
Purity
99.7%
Quantity
30 mg → 27.7 mg
Lab
BTLabs
Vial
No label / Silver crimp / Clear Pink cap
Date
5/6/2026
Purity
99.9%
Quantity
20 mg → 19 mg
Lab
Krause Analytical
Vial
No Label / Copper Crimp / Clear Cap
Date
5/5/2026
Purity
99.9%
Quantity
10 mg → 10.7 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
4/28/2026
Purity
99.9%
Quantity
10 mg → 10.5 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / White Cap
Date
3/4/2026
Purity
99.9%
Quantity
20 mg → 18.7 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Gray Cap
Date
3/4/2026
Purity
98.77%
Quantity
30 mg → 31.3 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
3/2/2026
Purity
98.01%
Quantity
30 mg → 28.8 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Black Cap
Date
1/26/2026
Purity
99.8%
Quantity
10 mg → 10.2 mg
Lab
BTLabs
Vial
White Label / Silver Crimp / Green Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideNo label, Silver crimp, Clear Yellow cap | 8/5/2026 | 10.0 | 99.9% | 50 mg → 51.3 mg | Krause Analytical | View |
| RetatrutideNo label, Copper crimp, Clear cap | 7/30/2026 | 10.0 | 99.8% | 15 mg → 15.4 mg | BTLabs | View |
| RetatrutideNo label / Silver crimp / Red cap | 7/17/2026 | 10.0 | 99.9% | 30 mg → 27.2 mg | Krause Analytical | View |
| RetatrutideNo label / Silver crimp / Clear Pink cap | 6/12/2026 | 10.0 | 99.7% | 30 mg → 27.7 mg | BTLabs | View |
| RetatrutideNo Label / Copper Crimp / Clear Cap | 5/6/2026 | 10.0 | 99.9% | 20 mg → 19 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Black Cap | 5/5/2026 | 10.0 | 99.9% | 10 mg → 10.7 mg | Krause Analytical | View |
| TirzepatideWhite Label / Silver Crimp / White Cap | 4/28/2026 | 10.0 | 99.9% | 10 mg → 10.5 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Gray Cap | 3/4/2026 | 10.0 | 99.9% | 20 mg → 18.7 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Black Cap | 3/4/2026 | 9.9 | 98.77% | 30 mg → 31.3 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Black Cap | 3/2/2026 | 9.8 | 98.01% | 30 mg → 28.8 mg | Krause Analytical | View |
| RetatrutideWhite Label / Silver Crimp / Green Cap | 1/26/2026 | 10.0 | 99.8% | 10 mg → 10.2 mg | BTLabs | View |
About Yidan Biotech
Finnrick has tested 11 samples from Yidan Biotech across 2 products.