Reviews from lab results · vendors can't buy a grade

Directory

Peptide Vendor List

Peptide vendors on this list are grouped by what independent labs found in their vials: 492 shops and 12,433 tests. Open any shop for its full review and certificates.

Vendors by peptide

A shop's grade can differ by peptide. Each page ranks the shops that sell one peptide on their lab results for that peptide alone.

Shops that passed: graded A or B

Independent tests of these shops' vials mostly matched the label on identity, purity and fill. A grades first, then the most-tested.

Mixed results: graded C

Some products tested well and some didn't. Check the product you want on the review before ordering.

Failed tests: graded D or E

Tests found underfilled vials, low purity or the wrong compound. Each review lists better-tested shops for the same peptides.

By region

Where a shop ships from changes delivery time and customs risk, not lab quality. Grades vary widely in both groups.

US-based shops (55)

Shops in China and Hong Kong (136)

Every China-based shop with independent tests, and what to check before ordering from one.

Chinese peptide suppliers

Shop not on the list?

No independent tests doesn't mean a shop is bad, only that its claims can't be checked yet. Use the checklist before you order.

How to verify a peptide vendor