Semax
Semax is a synthetic heptapeptide derived from adrenocorticotropic hormone (ACTH) fragment 4-10, extensively studied for its nootropic, neuroprotective, and neurorestorative properties.
Also known as: Synthetic ACTH Analog, Cognitive Enhancement Peptide
Overview
Semax is a synthetic heptapeptide derived from adrenocorticotropic hormone (ACTH) fragment 4-10, extensively studied for its nootropic, neuroprotective, and neurorestorative properties. Originally developed in Russia for stroke recovery, this brain-targeted peptide rapidly increases BDNF levels and modulates dopaminergic and serotonergic systems to enhance cognitive function, memory, and focus.
Key Benefits
- Memory Enhancement
- Attention and Focus
- Learning Acceleration
Rapid brain delivery, extensive clinical research, easy self-administration, excellent bioavailability to brain regions
Mechanism of Action
Direct transport through olfactory epithelium and trigeminal nerves, bypassing blood-brain barrier for enhanced CNS penetration
Pharmacokinetics
Peak plasma concentration: 20 min. Elimination half-life: 3 min. Largely cleared by: ~15 min.
Research Protocols Oral
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| Cognitive enhancement (healthy adults) | 300-600mcg | 1-2 times daily | Oral |
| Learning and memory support | 600-900mcg | 2-3 times daily during study periods | Oral |
| Recovery from brain injury | 900-1500mcg | 2-3 times daily | Oral |
| Anti-fatigue cognitive support | 400-800mcg | Single morning dose | Oral |
| Research/experimental protocols | 250-1000mcg | Variable based on study design | Oral |
Research protocols from published literature — not dosing recommendations.
Peptide Interactions
- NA-Semax-Amidate — Use Caution: Enhanced version of same peptide - do NOT use simultaneously. Choose one or the other based on desired duration and potency
- Selank — Synergistic: Complementary anxiolytic effects while Semax provides cognitive enhancement
- BPC-157 — Compatible: No known negative interactions, both support neuroplasticity through different mechanisms
- TB-500 — Compatible: Both support brain health and recovery, can be used together for comprehensive neuroprotection
- Stimulants — Monitor Combination: May enhance effects of stimulants - monitor carefully and reduce stimulant doses when combining
- MAO-Inhibitors — Use Caution: Theoretical risk due to monoamine system effects - consult healthcare provider before combining
What to Expect Oral
Days 1-3: Initial cognitive clarity and focus enhancement, possible mild nasal sensation. Week 1: Improved attention span and mental stamina during demanding tasks. Week 2-3: Enhanced memory consolidation and learning capacity, stable mood effects. Week 4: Peak cognitive benefits with improved stress resilience and mental flexibility. Post-cycle: Gradual return to baseline over 3-7 days, some benefits may persist.
Side Effects & Safety
Start with lowest effective dose (300mcg) to assess individual response. Avoid concurrent use with other intranasal medications that cause vasoconstriction. Monitor for any signs of nasal irritation, bleeding, or persistent discomfort. Do not exceed 4-week continuous use periods without medical supervision. Potential to enhance effects of stimulants - reduce other stimulant doses accordingly.
Start with lowest effective dose (300mcg) to assess individual response. Avoid concurrent use with other intranasal medications that cause vasoconstriction. Monitor for any signs of nasal irritation, bleeding, or persistent discomfort. Do not exceed 4-week continuous use periods without medical supervision. Potential to enhance effects of stimulants - reduce other stimulant doses accordingly.
Community Insights
Semax should be stored at Refrigerate at 2-8°C, do not freeze, protect from light.
Molecular Information
References
- Stroke Recovery Clinical Trial (2018)
- fMRI Default Mode Network Study (2018)
- Neuroprotective Effects in Brain Ischemia (2014)
- Cognitive Enhancement in Fatigued Workers (1996)
Research reference only. Not medical advice.