Overview
Russian nootropic ACTH analog for cognitive enhancement.
- Synthetic peptide manufactured to pharmaceutical or research-grade purity
- Subcutaneous injection, sublingual, or oral preparation depending on bioavailability
- Compounded by a licensed pharmacy for clinical use
- Subcutaneous injection
- Oral or sublingual lozenge
- Nasal spray
- Compounded topical
Mechanism of action
Increases BDNF expression and modulates neurotrophins.
- · Increases BDNF expression
- · modulates neurotrophins
Effects on the body
Organ system effects
Semax acts on central nervous system targets implicated in attention, memory, and neuroprotection.
Evidence-based benefits
Improves cognition post-stroke
Moderate evidencePotential side effects
- · Mild nasal irritation
Drug interactions
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Pregnant or breastfeeding (insufficient safety data)
- ·Children under 18 (unless directed by a clinician)
- ·Most research peptides are not FDA-approved for human use outside investigational protocols.
Supplement interactions
- Omega-3 (EPA/DHA)Membrane fluidity and neuronal signaling support.
- Alpha-GPC or CDP-cholineProvides choline substrate for acetylcholine synthesis.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Semax — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Semax third party tested NSF
CapsulesPre-measured Semax capsules — easiest for travel and consistent daily dosing without scoops or scales.Semax capsules
PowderBulk unflavored Semax powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Semax powder unflavored
Best sellersMost-purchased Semax products on Amazon — a quick way to see what's reviewed widely before you commit.Semax best sellerScientific evidence8Show studiesHide studies
Semax in ischemic stroke
Gusev EI, et al.
110 stroke patients
Improved neurological recovery.
PubMed: Semax — Improves cognition post-stroke
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PubMed: Semax — meta-analysis
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PubMed: Semax — dose response
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Google Scholar: Semax — clinical evidence
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