/ database / Nootropic

Semax

Also: ACTH(4-10) analog

Russian nootropic for focus and neuroprotection.

Evidence
emerging
Legal status
research only
Half-life
Short (nasal action)
Routes
nasal
What it is

Semax is a heptapeptide developed in Russia and used clinically there for stroke and cognitive indications. It strongly upregulates BDNF and is favored for focused work blocks.

Mechanism

ACTH(4-10) analog. Upregulates BDNF and modulates dopamine.

Outcomes it's matched to
  • Cognition

    Cognition & Focus

    Robust BDNF upregulation and dopamine modulation.

    STRENGTH
    82%
Safety

Well tolerated; rare mild nasal irritation.

  • Pregnancy
  • Psychiatric instability
Legal context

Approved in Russia for stroke recovery; research-only elsewhere.

1:1 GUIDANCE

Have questions about this peptide?

Get free 1:1 guidance from a peptide professional before you start. They'll help you think through dosing, stacking, and whether this fits your goals.

REQUEST A CALL →
PepVault

An outcome-driven reference for modern peptides. Educational only — not medical advice, not a sales platform, not affiliated with any clinic.

Disclaimer: PepVault is an educational resource. Nothing on this site is medical advice. Many peptides discussed are research compounds and are not approved by the FDA or equivalent agencies. Always consult a qualified clinician before starting any protocol.

© 2026 PepVault