Finnrick, an independent testing programme, publishes 4 assays for Nanjing Xiyuxun Technology XYX, and all 4 that it grades met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation). Most recent assay 13 May 2026.
Nanjing Xiyuxun Technology XYX operates from Nanjing, Jiangsu, China, listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/nanjing-xiyuxun-technology-xyx.
Finnrick-tested with poor results. Tested across 2 peptide products with 3 total samples.
Nanjing Xiyuxun Technology XYX is listed as active. Finnrick Grade D. Finnrick avg score: 6.5/10 across 3 samples (2 products). Below-average quality. Exercise caution.
Nanjing Xiyuxun Technology XYX holds independent lab grade D, assigned across 3 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.
No independent third-party assay is on file for Nanjing Xiyuxun Technology XYX, and we have not yet compiled a profile of its own website. An untested vendor has not failed a test — this is an absence of evidence, not evidence against it.
| Product | Assays | Result |
|---|---|---|
| GHK-Cu | 2 | 2 passed, 0 failed |
| Retatrutide | 2 | 2 passed, 0 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 | D (3 samples) |
| Average grader score | 6.5/10 |
| Vendor type | Research-use supplier |
Nanjing Xiyuxun Technology XYX is listed as active and we hold 4 Finnrick assays (4 passing, 0 failing its purity threshold); an independent lab grade of D. 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 Nanjing Xiyuxun Technology XYX, and all 4 that it grades met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation). Most recent assay 13 May 2026.
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