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Directory · Curated list · 342 suppliers

Suppliers publishing third-party testing

Suppliers that state independent (third-party) laboratory testing. Where we have reviewed the underlying certificates, each profile shows the laboratory, batch and date as documented.

Index updated 24 Sept 2026 · 0 verified · 342 state third-party testing · 247 with a COA page

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  1. #121

    BeSkinny

    —

    6.7Provisional
    18 products
    Third-party testing statedCOA page linked, not reviewedBank transferCrypto
    View reviewVisit store
  3. #123

    NEXAPH

    —

    6.7Provisional
    3.9 Trustpilot(73)26 products · Ships to 2 countries
    Third-party testing statedCard
    View reviewVisit store
  4. #124

    Red Panda Peptides

    —

    6.7Provisional
    16 products · Delivery Royal Mail Tracked 24 has a next-working-day delivery aim , but this is not a guaranteed next-day delivery service.
    Third-party testing stated
    View reviewVisit store
  9. #129

    Amp Peptides

    US based

    United States

    6.6
    15 products · Delivery If your order arrives damaged or incorrect, contact info@amp-peptides.com within 7 days of delivery with photos and your order number, and we will resolve the issue.
    Third-party testing statedCOA page linked, not reviewedCardCrypto
    View reviewVisit store
  11. #131

    Nugenyx

    GB based

    United Kingdom

    6.6Provisional
    4.7 Trustpilot(38)23 products · Ships to 36 countries
    Third-party testing stated
    View reviewVisit store
  13. #133

    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
  17. #137

    GLP1 Research Lab

    US based

    United States

    6.6Provisional
    11 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
  20. #140

    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
  21. #141

    Pyrox Labs

    GB based

    United Kingdom

    6.6Provisional
    50 products · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transfer
    View reviewVisit store
  27. #147

    RetaOne Labs

    US based

    United States

    6.6Provisional
    3.5 Trustpilot(12)12 products
    Third-party testing statedCOA page linked, not reviewedCard
    View reviewVisit store
  32. #152

    Nilah Labs

    GB based

    United Kingdom

    6.5Provisional
    4.2 Trustpilot(6)12 products · Delivery Free Royal Mail next day delivery on all orders!. · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  33. #153

    Elevr

    GB based

    United Kingdom

    6.5Provisional
    4.6 Trustpilot(19)8 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  37. #157

    Ashenix

    GB based

    United Kingdom

    6.5Provisional
    10 products
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  38. #158

    Ascension Peptides

    US based

    United States

    6.5
    4.8 Trustpilot(78)21 products · Delivery For USA deliveries, please allow 2–5 business days after payment is fully processed and released by your bank. · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCard
    View reviewVisit store
  45. #165

    EZ PEPTIDE

    US based

    United States

    6.5Provisional
    19 products
    Third-party testing statedCOA page linked, not reviewedCardPayPal
    View reviewVisit store
  51. #171

    Core Research Peptides

    US based

    United States

    6.4
    18 products · Delivery Unopened, intact products returned within 14 days of delivery. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewedCardCrypto
    View reviewVisit store
  58. #178

    Alveque Peptides

    —

    6.4Provisional
    14 products · Delivery Next-Day Delivery — Premium Quality Free Shipping Over $50 + 3 Free Samples With Every Order .
    Third-party testing stated
    View reviewVisit store