Independent side-by-side comparison of Felix Health and Hangzhou Qihang Xingcheng — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Hangzhou Qihang Xingcheng has more published third-party tests (2 vs 0); Felix Health carries more community reviews (3400).
Every figure below is either measured by an independent laboratory or read from the vendor's own website, and the source is named against it. PeptideAtlas is not affiliated with either vendor.
Felix Health has no independent Janoshik assays on file. Hangzhou Qihang Xingcheng: 2 independent Janoshik assays, across 2 substances, median measured purity 99.8%, most recent 2026-04-13.
| Attribute | Felix Health | Hangzhou Qihang Xingcheng |
|---|---|---|
| Third-party tests | None published | 2 tests, avg purity 99.8% |
| Community rating | 4.4/5 (3400 reviews) | No reviews |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Production country | Canada | Not specified |
| Year established | 2019 | Unknown |
| Substance | Felix Health | Hangzhou Qihang Xingcheng |
|---|---|---|
| Tirzepatide 20mg(TR20) | Not tested | 99.64% (1 assay, latest 2026-04-13) |
| Tirzepatide 60mg(TR60) | Not tested | 99.90% (1 assay, latest 2026-02-19) |
Hangzhou Qihang Xingcheng. Felix Health has no independent Janoshik assays on file. Hangzhou Qihang Xingcheng: 2 independent Janoshik assays, across 2 substances, median measured purity 99.8%, most recent 2026-04-13. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
Full profiles: Felix Health, Hangzhou Qihang Xingcheng.
Full lab-test records: All 2 Hangzhou Qihang Xingcheng lab tests.
Related comparisons: Felix Health vs Heman Peptide HM, Hangzhou Qihang Xingcheng vs Apex Peptides, Felix Health vs LA Peptides, Hangzhou Qihang Xingcheng vs BioTech Peptides, Hangzhou Qihang Xingcheng vs LA Peptides, Hangzhou Qihang Xingcheng vs Mei Peptide.