Supplier check
Chinese Peptide Suppliers
China-based peptide suppliers are graded here on independent lab tests, not on their own certificates. We hold 5,011 tests across 136 shops that ship from China or Hong Kong.
See the lab recordsSuppliers in China with independent tests
Most-tested first. Each grade applies to the batches that were tested.
What the tests show
53 of 136 graded suppliers average A or B. 46 average D or E.
The spread is wide. Shipping from China says nothing about quality either way, so judge each shop on its own record.
Before you order from a supplier in China
- Ask for a certificate whose batch number matches the vial you will receive.
- Prefer shops with recent independent tests across several products, not one old result.
- Expect longer shipping and possible customs delays. Ask how a seized parcel is handled.
- Many shops take only crypto or wire transfer. Neither can be reversed if an order goes wrong.
- Work through our vendor verification checklist for anything not listed here.
Suppliers without lab tests yet
We track 120 more China-based shops with no independent tests on file. No grade isn't a verdict, but their purity claims can't be checked here.
Browse every vendor review