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Directory · Curated list · 459 suppliers

Suppliers with certificates of analysis

Two kinds of supplier appear here, and each card says which. Some have certificates of analysis we hold and have reviewed: batch, laboratory and date as documented. Others link a certificates-of-analysis page on their website that we have not yet reviewed; for those, the COA is the supplier's own claim.

Index updated 24 Sept 2026 · 0 verified · 350 state third-party testing · 459 with a COA page

Browse by region

  2. #302

    BioLongevity Labs

    US based

    United States

    5.4Provisional
    20 products · Ships to 31 countries
    Third-party testing statedCOA page linked, not reviewedBank transfer
    View reviewVisit store
  3. #303

    CertaPeptides

    RO based

    Romania

    5.4Provisional
    4.6 Trustpilot(87)51 products
    Third-party testing statedCOA page linked, not reviewedBank transfer
    View reviewVisit store
  12. #312

    RETApro

    —

    4.5Provisional
    4.3 Trustpilot(8)4 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardCrypto
    View reviewVisit store
  17. #317

    Kovalabs

    GB based

    United Kingdom

    –
    23 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  18. #318

    Peptidology

    US based

    United States

    –
    4.8 Trustpilot(179)12 products
    Third-party testing statedCOA page linked, not reviewedCardBank transferCrypto
    View reviewVisit store
  20. #320

    Vi Corpus

    AU based

    Australia

    –
    13 products · Delivery Standard delivery within Australia typically takes 2-5 business days depending on your location. · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  22. #322

    Nexyra Lab

    GB based

    United Kingdom

    –
    11 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  23. #323

    Baltic Peptides

    LT based

    Lithuania

    –
    36 products · Delivery Product arrived well packaged within 4 days to the UK.”. · Ships to 36 countries
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  24. #324

    R&D Peptides

    GB based

    United Kingdom

    –
    4.5 Trustpilot(16)29 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  31. #331

    RETA LAB UK

    —

    –
    48 products · Ships to 1 country
    Third-party testing statedCOA page linked, not reviewedCardBank transferCrypto
    View reviewVisit store
  33. #333

    CoreLab Supplies

    GB based

    United Kingdom

    –
    Delivery Enjoy free 24–48 hour delivery on UK orders over £180 .
    Third-party testing statedCOA page linked, not reviewed
    View reviewVisit store
  37. #337

    CellPeptides

    US based

    United States

    –
    Ships to 34 countries
    Third-party testing statedCOA page linked, not reviewedCardBank transferCrypto
    View reviewVisit store
  45. #345

    Clavicular Peptides

    US based

    United States

    –
    Delivery QSC maintains a US domestic warehouse with 2–5 business day delivery and no customs clearance required.
    Third-party testing statedCOA page linked, not reviewedBank transferCrypto
    View reviewVisit store