Find peptide distributors, wholesalers, and bulk suppliers serving resellers, laboratories, institutions, and other commercial buyers. Listings include both inventory-holding distributors and high-volume wholesale businesses. Showing 47 listed suppliers.
A distributor may source from an upstream manufacturer rather than produce peptides directly. Before ordering, confirm manufacturer identity, batch-specific COAs, lot traceability, storage conditions, testing methods, minimum order quantities, and applicable import requirements.
Directory listing last reviewed August 2026.
A wholesale peptide supplier sells larger B2B quantities to resellers, laboratories, institutions, or other commercial buyers. It may manufacture peptides or distribute material produced by another company. Compare minimum order quantities, price breaks, batch sizes, private-label options, fulfillment regions, and whether inventory is already released.
A distributor can simplify domestic inventory, documentation, and logistics, but may not control synthesis. Require disclosure of the upstream manufacturer, source batch, storage history, and the relationship between the supplied product and its COA.
Use batch-specific HPLC and mass-spectrometry results, quantity or content testing, and lot traceability when comparing bulk peptide suppliers. Review third-party tested suppliers and suppliers with COAs as starting points.