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    Cosmetic peptide reference

    Cosmetic peptides — UK skincare reference

    Cosmetic peptides are short sequences used in topical skincare for collagen support, expression-line reduction, and skin barrier function. They are regulated as cosmetic ingredients, NOT as medicines. Many of the same peptide names are also marketed as injectable products — those engage entirely different regulatory rules. This hub keeps the categories straight.

    Topical cosmetic peptides

    Argireline (acetyl hexapeptide-3)

    Topical neuromuscular peptide for expression lines.

    Matrixyl

    Matrikine peptide that stimulates collagen production.

    GHK-Cu (copper tripeptide-1)

    Gene-expression-modulating cosmetic peptide; topical evidence base.

    SNAP-8 (acetyl octapeptide-3)

    Extended Argireline variant; SNARE complex inhibition.

    Syn-Ake

    Snake venom analogue; topical wrinkle-reduction marketing.

    Leuphasyl

    Enkephalin receptor modulator; cosmetic.

    Palmitoyl tripeptide-1

    Signal peptide for collagen synthesis.

    Palmitoyl tetrapeptide-7

    Anti-glycation marketing in cosmetic skincare.

    Cosmetic vs injectable distinction

    GHK-Cu + BPC-157 claim review

    Why the topical cosmetic evidence doesn't translate to injectable use.

    Clinic claim red flags

    Cosmetic clinics offering injectable 'cosmetic peptides' — what to watch for.

    Peptide claim checker (tool)

    Check a marketed cosmetic claim against evidence.

    Evidence-based skin ageing

    Peptides for anti-ageing guide

    UK-context anti-ageing intervention guide.

    Anti-ageing category

    Broader anti-ageing peptide profiles.

    Cosmetic peptides category

    All cosmetic peptide profiles.

    Last reviewed:

    Next review due:

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