Supplier check
Chinese Peptide Suppliers
Chinese peptide suppliers graded on 5,006 independent lab tests across 136 shops that ship from China or Hong Kong, not on their own certificates.
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
48 of 136 graded suppliers average A or B. 44 average D or F.
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.
- 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.
Shipping and customs from China
- International parcels take longer than domestic orders, and tracking often goes quiet between export and import.
- Customs can hold, inspect or seize a parcel. Ask the shop in writing how it handles a held or seized order before you pay.
- Location is a shipping fact, not a quality signal. Judge each shop by its own test results above.
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.
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