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    Peptide Profiles

    Cognitive Peptides: Selank, Semax and the Nootropic Literature

    What Russian neuropeptide research has produced — and what's been independently replicated.

    Dr. Helena Rourke
    Dr. Helena Rourke
    Scientific Editor
    Apr 12, 2025
    8 min read
    Cognitive Peptides: Selank, Semax and the Nootropic Literature

    Selank and Semax originated in Soviet-era neuropeptide research and have continued to attract international research interest.

    Selank

    A synthetic analog of tuftsin studied in anxiety, stress, and immunomodulation research.

    Semax

    An ACTH(4-10) analog studied for effects on BDNF expression and neuroprotection in animal models.

    Filed under Peptide Profiles

    For research use only

    Content in the Thrive Peptides journal summarizes published research and is intended for qualified investigators. It is not medical advice and does not describe products for human consumption.

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