All profiles

Midwest Peptide

ExcellentLast updated September 1, 2026

Midwest maintains a central COA archive stating "Every product. Every batch. Independently verified," backed by HPLC purity, mass spectrometry, batch number, testing date and independent lab identification.

Documented strengths

  • Central archive covers BPC-157, GHK-Cu, KLOW, GLP-2 TZ, multiple GLP-3 RT strengths, CJC-1295 products and numerous other compounds.
  • Product pages state a third-party COA per batch verifying HPLC purity, MS identity and lyophilized mass.
  • Batch-specific documentation is available before purchase.
  • A GLP-3 research page additionally states GLP-3 RT batches undergo endotoxin testing.

Limitations in this review

  • The central COA page describes the HPLC/MS system well but does not by itself establish catalog-wide sterility or heavy-metals testing.
  • Contamination checks should be awarded only where the specific product/lot report supports them.

Transparency signals

Public batch COAs
AllAll reviewed products passed this individual check.
Historical reports retained
AllAll reviewed products passed this individual check.
Third-party lab verification
AllAll reviewed products passed this individual check.
HPLC purity
AllAll reviewed products passed this individual check.
Measured quantity
AllAll reviewed products passed this individual check.
Lot traceability
AllAll reviewed products passed this individual check.
Sterility
AllAll reviewed products passed this individual check.
Endotoxin
AllAll reviewed products passed this individual check.
Heavy metals
AllAll reviewed products passed this individual check.