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Directory · Regional · 146 suppliers

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 company registration or 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 24 Sept 2026 · 0 verified · 125 state third-party testing · 112 with a COA page

Where suppliers are basedUS
Based in the US (80)Ship in from elsewhere (66)

Based in the US (80)

  3. #63

    NextGenPeps

    US based

    United States

    6.0Provisional
    3.4 Trustpilot(23)24 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardPayPal
    View reviewVisit store
  10. #70

    Peptidology

    US based

    United States

    –
    4.8 Trustpilot(179)12 products
    Third-party testing statedCOA page linked, not reviewedCardBank transferCrypto
    View reviewVisit store

Ship to the US from abroad (66)

Based elsewhere, or location not stated, but they say they deliver to the US.

  4. #4

    GenPeptide

    —

    7.8Provisional
    4.4 Trustpilot(30)20 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardCrypto
    View reviewVisit store
  7. #7

    Evolve Biolab UK

    GB · ships to US

    United Kingdom

    7.4Provisional
    4.6 Trustpilot(22)36 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  8. #8

    Research Peptides NI

    GB · ships to US

    United Kingdom

    7.4Provisional
    76 products · Delivery Estimated delivery time: 1–2 business days (UK & Ireland). · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  9. #9

    ZENTRA Peptides

    GB · ships to US

    United Kingdom

    7.3Provisional
    33 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transfer
    View reviewVisit store
  10. #10

    Power Peptides

    GB · ships to US

    United Kingdom

    7.3
    54 products · Delivery Most UK orders are dispatched within 24 hours and arrive within 1–3 working days using tracked delivery. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCard
    View reviewVisit store
  14. #14

    99PurityPeptides

    —

    7.2
    4.8 Trustpilot(57)34 products · Delivery dispatch promptly via UPS within 1 to 3 business days · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardPayPal
    View reviewVisit store
  15. #15

    Sparta Labs

    —

    7.2Provisional
    4.3 Trustpilot(7)27 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardCrypto
    View reviewVisit store
  16. #16

    Peptology Labs

    GB · ships to US

    United Kingdom

    7.1
    4.8 Trustpilot(79)25 products · Delivery However, this is not a guaranteed next-day service, so please allow 1–2 working days for delivery. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedBank transfer
    View reviewVisit store
  17. #17

    Bionik Peptides

    GB · ships to US

    United Kingdom

    7.1Provisional
    41 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transfer
    View reviewVisit store
  18. #18

    Index Peptides

    GB · ships to US

    United Kingdom

    7.1
    4.2 Trustpilot(6)14 products · Delivery Delivery is tracked, and shipping is free on UK orders over 30 pounds, with tracked 48 hour service at 3.65 pounds below that. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedBank transferCrypto
    View reviewVisit store
  23. #23

    Genetic Research

    GB · ships to US

    United Kingdom

    6.9Provisional
    4.0 Trustpilot(3)14 products · Delivery Next day shipping in the UK. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  27. #27

    Healius Peptides

    —

    6.9Provisional
    3.2 Trustpilot(1)28 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transferCrypto
    View reviewVisit store
  30. #30

    American Peptides

    —

    6.8
    3.1 Trustpilot(13)42 products · Delivery delivered in 2–3 business days · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardCrypto
    View reviewVisit store
  32. #32

    BluePeak Peptides

    GB · ships to US

    United Kingdom

    6.7Provisional
    4.4 Trustpilot(195)16 products · Ships to 34 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transferCrypto
    View reviewVisit store
  33. #33

    ApexLink

    GB · ships to US

    United Kingdom

    6.7Provisional
    16 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCard
    View reviewVisit store
  35. #35

    NEXAPH

    —

    6.7Provisional
    3.9 Trustpilot(73)26 products · Ships to 2 countries
    Third-party testing statedCard
    View reviewVisit store
  36. #36

    Nugenyx

    GB · ships to US

    United Kingdom

    6.6Provisional
    4.7 Trustpilot(38)23 products · Ships to 36 countries
    Third-party testing stated
    View reviewVisit store
  37. #37

    OptimalPep

    —

    6.6
    29 products · Delivery Orders ship via FedEx 2-Day or USPS Priority and usually arrive within 2–3 business days once scanned. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCard
    View reviewVisit store
  38. #38

    PSPeptides™

    —

    6.6Provisional
    54 products · Delivery Shipped Shipped Same Day Most Orders Shipped Within 2-24 Hours · Ships to 32 countries
    Third-party testing stated
    View reviewVisit store
  39. #39

    Pyrox Labs

    GB · ships to US

    United Kingdom

    6.6Provisional
    50 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transfer
    View reviewVisit store

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.