Independent Testing

    Independent lab results.

    Real dose and purity, exactly as the labs report them.

    Full panel tested UK stock, and what is booked next: lab tested peptides.

    Our company is PX Reagents Ltd, registered in Scotland (SC890970), trading as Peptx. Janoshik reports show the client as “PX”. Where a lab offers online verification, the result links to the lab’s own record.

    UK Express shop Factory Direct

    Our results

    19 independent results. Every one passed.

    Average purityAvg purity
    99.60%
    Independent labsLabs
    5
    Full panel resultsFull panel
    8
    Full panelTested

    Latest full panel

    Purity, mass, endotoxins and sterility

    Independent result

    Pass

    Tirzepatide · 60mg

    Chromate · Official Peptx

    99.40%

    Purity

    Full panelTested
    Mass
    72.16mg · 60mg label
    Endotoxins
    Below 0.5 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    KLOW Blend · 80mg

    Chromate · Official Peptx

    99.74%

    Purity

    Full panelTested
    Mass
    79.67mg · 80mg label
    Endotoxins
    Below 0.2 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    Retatrutide · 30mg

    Chromate · Official Peptx

    99.91%

    Purity

    Full panelTested
    Mass
    35.02mg · 30mg label
    Endotoxins
    2.548 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    Retalora (Retatrutide + Eloralintide) · 12.5mg

    Chromate · Official Peptx

    99.64%

    Purity

    Full panelTested
    Mass
    12.32mg · 12.5mg label
    Endotoxins
    1.639 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    Ultra Klow · 110mg

    Chromate · Official Peptx

    99.30%

    Purity

    Average of 2 vials

    Full panelTested
    Mass
    120.26mg · 110mg label
    Endotoxins
    3.313 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    Retatrutide · 30mg

    Chromate · Official Peptx

    99.67%

    Purity

    Average of 2 vials

    Full panelTested
    Mass
    34.53mg · 30mg label
    Endotoxins
    Below 1 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    KPV · 60mg

    Chromate · Official Peptx

    98.53%

    Purity

    Average of 2 vials

    Full panelTested
    Mass
    73.38mg · 60mg label
    Endotoxins
    1.555 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    MOTS-c · 10mg

    Chromate · Official Peptx

    99.40%

    Purity

    Full panelTested
    Mass
    11.23mg · 10mg label
    Endotoxins
    Below 0.6 EU/vial
    Sterility
    Pass

    Independent result

    Pass

    Retatrutide · 10mg

    Janoshik · Official Peptx

    99.44%

    Purity

    9.69mg measured · 10mg labelled

    Independent result

    Pass

    GHK-Cu · 50mg

    Janoshik · Official Peptx

    99.84%

    Purity

    59.30mg measured · 50mg labelled

    Independent result

    Pass

    MOTS-c · 10mg

    Marfleet · Official Peptx

    99.84%

    Purity

    9.98mg measured · 10mg labelled

    Independent result

    Pass

    BPC-157 · 10mg

    Marfleet · Official Peptx

    99.97%

    Purity

    9.99mg measured · 10mg labelled

    Independent result

    Pass

    Eloralintide · 5mg

    BT Labs · Official Peptx

    99.60%

    Purity

    5.5mg measured · 5mg labelled

    Independent result

    Pass

    SS-31 · 50mg

    BT Labs · Official Peptx

    99.90%

    Purity

    50.1mg measured · 50mg labelled

    Independent result

    Pass

    Retatrutide · 20mg

    Analiza Białek · Official Peptx

    99.29%

    Purity

    21.86mg measured · 20mg labelled

    Independent result

    Pass

    PT-141 · 10mg

    Janoshik · Official Peptx

    99.91%

    Purity

    10.96mg measured · 10mg labelled

    Independent result

    Pass

    Ipamorelin · 5mg

    Janoshik · Official Peptx

    99.65%

    Purity

    4.81mg measured · 5mg labelled

    Archive

    Archived: results from July 2026 or earlier, and tests on third-party supply.

    Independent result

    Pass

    Tirzepatide · 30mg

    Chromate · 3rd-party supply

    99.85%

    Purity

    36.17mg measured · 30mg labelled
    View result

    Independent result

    Pass

    Retatrutide · 10mg

    Janoshik · Part-funded group

    99.58%

    Purity

    11.36mg measured · 10mg labelled
    View result