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Buyer's guide · November 2026 · 211 suppliers · United States · page 4 of 7

Compare Semax suppliers in the US

Suppliers 91 to 120 of 205 with Semax on sale based in the US, in PepFinder Score order. Back to the first page for the price range, market history and questions.

Prices checked 8 Nov 2026 · 350 listings · 327 confirmed in stock · 18 out of stock · Neuropeptide analogues

Semax · listed price per mg
USD · single vials · 150 suppliersmedian US$4.45/mg
US$1.04/mgUS$17.00/mg

Multi-vial packs: US$0.60/mg to US$12.09/mg, median US$2.63/mg (40 listings), shown separately.

Each currency is shown separately; prices are never converted. Packs of several vials are compared per mg of the whole pack, apart from single vials.

Suppliers 91–120 of 205 with listings on sale (6 more with everything out of stock) · prices in USD only, never converted

  1. 91
    Happy Peps logo

    Happy Peps

    US based
    Third-party testing statedCOA page linked, not reviewed

    41 products tracked

    Pays byCard
    4.6 Trustpilot(136)
    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$4.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$40.00US$4.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  2. 92
    Peptagon logo

    Peptagon

    US based
    Third-party testing statedCOA page linked, not reviewed

    49 products tracked

    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$1.80/mg (30 mg vial)

    Listing as namedSizePricePer mgStock
    Semax Research Peptide – 30mg30 mgUS$54.00US$1.80/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  3. 93
    Prime Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    27 products tracked

    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$4.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax10 mgUS$45.00US$4.50/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  4. 94
    RetaOne Labs logo

    RetaOne Labs

    US based
    Third-party testing statedCOA page linked, not reviewed

    28 products tracked

    Pays byCard
    3.5 Trustpilot(12)
    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$2.60/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$26.00US$2.60/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  5. 95
    Impact Aminos logo
    Third-party testing stated

    37 products tracked

    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$5.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax10 mgUS$55.00US$5.50/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  6. 96
    Liberty Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    72 products tracked

    Pays byCard
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$1.87/mg (30 mg vial)

    Listing as namedSizePricePer mgStock
    Semax (30mg)30 mgUS$56.00US$1.87/mgIn stockOn their site ↗
    N- Acetyl Semax (30mg)30 mgUS$85.00US$2.83/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  7. 97
    Nationwide Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    134 products tracked

    Pays byCard
    3.8 Trustpilot(2)
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$7.40/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Semax Peptide5 mgUS$37.00US$7.40/mgIn stockOn their site ↗
    Semax Peptide10 mgUS$77.00US$7.70/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  8. 98
    Neuro Labs logo

    Neuro Labs

    US based
    Third-party testing statedCOA page linked, not reviewed

    50 products tracked

    Pays byCard
    4.3 Trustpilot(45)
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$3.65/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    SEMAX (10MG)10 mgUS$36.49US$3.65/mgIn stockOn their site ↗
    SEMAX MISTAs listedUS$74.58—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  9. 99
    Northwest Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    67 products tracked

    Pays byCard
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$6.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$59.99US$6.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  10. 100
    NuRev Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    61 products tracked · Ships to 36 countries

    4.5 Trustpilot(20)
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$4.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$39.99US$4.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  11. 101

    Pepta Labs

    US based
    Third-party testing statedCOA page linked, not reviewed

    52 products tracked

    Pays byCrypto
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$2.77/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    N-Acetyl Semax Amidate 10mg10 mgUS$43.46US$4.35/mgIn stockOn their site ↗
    Semax 10mg10 mgUS$27.74US$2.77/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  12. 102
    Pharma Grade Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    108 products tracked

    Pays byCardCrypto
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$6.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax5 mgUS$40.00US$8.00/mgIn stockOn their site ↗
    Semax10 mgUS$60.00US$6.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  13. 103
    Protide Health logo
    Third-party testing statedCOA page linked, not reviewed

    65 products tracked

    Pays byCardCrypto
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$6.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax (N-Acetyl Amidate) 10mg10 mgUS$75.00US$7.50/mgIn stockOn their site ↗
    Semax 10mg10 mgUS$60.00US$6.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  14. 104
    Third-party testing statedCOA page linked, not reviewed

    41 products tracked · Delivery Delivery to the UK is overnight and 2–3 day delivery available. · Ships to 7 countries

    Pays byCrypto
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SemaxAs listedUS$77.68—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  15. 105
    Royal Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    213 products tracked

    Pays byBank transferCrypto
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$5.53/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$55.25US$5.53/mgIn stockOn their site ↗
    Semax 10mgkit-10-vials
    Kit
    US$365.50—In stockOn their site ↗
    Semax 10mgx10vialsAs listedUS$297.50—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  16. 106
    V1 Peptides logo

    V1 Peptides

    US based
    Third-party testing statedCOA page linked, not reviewed

    40 products tracked

    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SEMAXAs listedUS$34.99—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  17. 107
    Valor Peptides logo
    COA page linked, not reviewed

    49 products tracked · Ships to 1 country

    4.1 Trustpilot(33)
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SemaxAs listedUS$36.99—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  18. 109
    Cheap Peptide logo
    Third-party testing statedCOA page linked, not reviewed

    29 products tracked

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$3.80/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    SEMAX Peptide 5mg | High Purity Research Grade | Cheap Peptide5 mgUS$25.00US$5.00/mgIn stockOn their site ↗
    SEMAX Peptide 10mg | High Purity Research Grade | Cheap Peptide10 mgUS$38.00US$3.80/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  19. 110
    Cosmic Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    29 products tracked

    Pays byCard
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SemaxAs listedUS$28.99—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  20. 111
    Evolve Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    77 products tracked

    3.8 Trustpilot(39)
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$3.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax (5mg)5 mgUS$25.00US$5.00/mgIn stockOn their site ↗
    N-Acetyl Semax Amidate 10 mg10 mgUS$35.00US$3.50/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  21. 112
    GLP1 Research Lab logo
    Third-party testing statedCOA page linked, not reviewed

    17 products tracked · Delivery Domestic (U.S.) delivery typically takes 2–5 business days after processing, depending on FedEx service level and destination.

    Pays byCardPayPal
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SemaxAs listedUS$89.90—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  22. 113
    Honest Peptide logo
    Third-party testing statedCOA page linked, not reviewed

    24 products tracked · Ships to 1 country

    4.3 Trustpilot(43)
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$4.90/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax10 mgUS$49.00US$4.90/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  23. 114
    Iron Core Research logo
    Third-party testing stated

    58 products tracked

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$5.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$49.99US$5.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  24. 115
    MedSpa Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    76 products tracked

    Pays byCardCrypto
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$9.80/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 5mg5 mgUS$49.00US$9.80/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  25. 116
    Orbitrex Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    55 products tracked · Ships to 1 country

    Pays byCard
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$2.67/mg (30 mg vial)

    Listing as namedSizePricePer mgStock
    Semax 10mg10 mgUS$29.99US$3.00/mgIn stockOn their site ↗
    N-Acetyl Semax Amidate 10mg10 mgUS$54.99US$5.50/mgIn stockOn their site ↗
    Semax 30mg30 mgUS$79.99US$2.67/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  26. 117
    Peptira logo

    Peptira

    US based
    Third-party testing statedCOA page linked, not reviewed

    52 products tracked

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SemaxAs listed——In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  27. 118
    PX1 Research logo

    PX1 Research

    US based
    Third-party testing statedCOA page linked, not reviewed

    100 products tracked

    Pays byCardBank transferCrypto
    3.8 Trustpilot(2)
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$2.17/mg (30 mg vial)

    Listing as namedSizePricePer mgStock
    Semax5 mgUS$65.00US$13.00/mgIn stockOn their site ↗
    Semax10 mgUS$65.00US$6.50/mgIn stockOn their site ↗
    Semax3 × 5 mg
    15 mg in total
    US$181.35US$12.09/mgIn stockOn their site ↗
    Semax5 × 5 mg
    25 mg in total
    US$289.25US$11.57/mgIn stockOn their site ↗
    Semax30 mgUS$65.00US$2.17/mgIn stockOn their site ↗
    Semax3 × 10 mg
    30 mg in total
    US$181.35US$6.05/mgIn stockOn their site ↗

    + 6 more on the full catalogue.

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  28. 119
    Trusted Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    20 products tracked · Delivery Free FedEx 2 days air shipment with Saturday delivery!.

    Pays byCard
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    SemaxAs listedUS$40.00—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  29. 120
    World Wide Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    92 products tracked

    Pays byCardBank transferCryptoPayPal
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Semax5 mgUS$88.00—In stockOn their site ↗
    Semax10 mgUS$160.00—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.