Finnrick, an independent testing programme, publishes 4 assays for Qingdao Hongshengda Trading: 3 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 1 did not. Most recent assay 5 Nov 2025.
Qingdao Hongshengda Trading operates from China, listed by Finnrick as "active". Source: Finnrick, https://www.finnrick.com/vendors/qingdao-hongshengda-trading.
Finnrick-tested with very poor results. Tested across 1 peptide products with 4 total samples.
Qingdao Hongshengda Trading is listed as active. Finnrick Grade E. Finnrick avg score: 6.5/10 across 4 samples (1 products). Poor quality detected in testing. Use with extreme caution.
Qingdao Hongshengda Trading holds independent lab grade E, assigned across 4 graded samples, average score 6.5/10. That grade comes from an independent grader's own sampling, not from PeptideAtlas, and it describes the samples that grader obtained rather than every batch sold.
| Product | Assays | Result |
|---|---|---|
| Tirzepatide | 4 | 3 passed, 1 failed |
Source: Finnrick, as published 2026-08-09. Pass and fail are Finnrick's classification against its own threshold, not ours.
| Status | Active |
|---|---|
| Independent lab grade | E (4 samples) |
| Average grader score | 6.5/10 |
| Vendor type | Research-use supplier |
These details were read from Qingdao Hongshengda Trading's own website on 2026-08-17. Pages consulted:
Qingdao Hongshengda Trading is listed as active and we hold 4 Finnrick assays (3 passing, 1 failing its purity threshold); an independent lab grade of E. That is evidence about the batches that were tested or published, not a guarantee about the vial you receive.
Yes. Finnrick, an independent testing programme, publishes 4 assays for Qingdao Hongshengda Trading: 3 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 1 did not. Most recent assay 5 Nov 2025.
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