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Research peptide suppliers for the US

Suppliers whose recorded business location is in the US, or who state that they ship there. Location and shipping countries come from the supplier's own published information, and are shown with their source on each profile. Rules on buying and importing these products differ by country; in United States the regulator is the U.S. Food and Drug Administration (FDA). We give no advice on legality or use.

Index updated 7 Nov 2026 · 11 verified · 283 state third-party testing · 275 with a COA page

Where suppliers are basedUnited States
Based in the US (302)Ship in from elsewhere (67)

Of 369 suppliers serving the US, 302 are based there and 67 ship in from abroad. 283 state third-party testing and 275 link a certificate of analysis page. 11 have passed PepFinder verification. Stores based in the US are listed before those shipping in, whatever their score.

Based in the US (302)

  9. GLP1 Research Lab logo
    #129

    GLP1 Research Lab

    US based

    United States

    6.4
    17 products · Delivery Domestic (U.S.) delivery typically takes 2–5 business days after processing, depending on FedEx service level and destination.
    Third-party testing statedCOA page linked, not reviewedCardPayPal
    View reviewVisit store

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  11. Trusted Peptides logo
    #131

    Trusted Peptides

    US based

    United States

    6.4
    20 products · Delivery Free FedEx 2 days air shipment with Saturday delivery!.
    Third-party testing statedCOA page linked, not reviewedCard
    View reviewVisit store

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  14. LiveWell logo
    #134

    LiveWell

    US based

    United States

    6.4
    28 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transfer
    View reviewVisit store

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  53. Try Hero Research logo
    #173

    Try Hero Research

    US based

    United States

    6.1
    24 products · Delivery Skip to content NEXT DAY SHIPPING +99% PURITY USA CERTIFIED NEXT DAY SHIPPING +99% PURITY USA CERTIFIED NEXT DAY SHIPPING +99% PURITY USA CERTIFIED .
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store

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Buying research peptides in the US

Suppliers appear here because they are based in the US or state that they ship there. Prices are compared in USD only, never converted from other currencies, so the figures reflect what buyers in the US actually pay. Rules on buying, importing and possessing research peptides are set nationally, and the regulator in United States is the U.S. Food and Drug Administration (FDA): our page on whether peptides are legal in the US summarises them, with links to the sources.

To compare prices for one peptide in USD, go straight to BPC-157, Retatrutide, Tirzepatide, Semaglutide, Tesamorelin, GHK-Cu, Ipamorelin or Sermorelin. Before ordering from a supplier you have not used, run through our checklist for spotting an unreliable supplier, and check whether it publishes independent test results. The best-rated and fastest delivery rankings cover every region.