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Mechanism of action
Semax is a neuroactive ACTH(4-10) analog researched for cognition, attention, and neuroprotection. Mechanistic interest includes BDNF-related signaling, monoamine modulation, and stress-resilience pathways.
Half-life & pharmacokinetics
Half-life: Short acting.
Human pharmacokinetics are not standardized. Treat exposure as short acting unless compound-specific data or formal formulation labeling indicates otherwise.
Research dosing reference
300-1000 mcg daily depending on focus/cognitive objective.
Dose interpretation (U-100 units)
| Target dose | U-100 units |
|---|---|
| 300 mcg | 6 units |
| 600 mcg | 12 units |
| 1000 mcg | 20 units |
Units are concentration-specific - confirm against your actual reconstitution volume.
Reconstitution & concentration
| Vial | Preferred reconstitution | Final concentration |
|---|---|---|
| 10 mg | 2 mL BAC Water | 0.050 mg/unit |
| 30 mg | 3 mL BAC Water preferred for cleaner concentration | 0.100 mg/unit |
Injection timing
Daytime or situational use is common unless sleep-specific. Avoid first-time use before critical tasks until response is understood.
Beginner escalation
Titrate based on sedation, stimulation, headache, focus, sleep quality, or emotional response. More is not always better with neuroactive peptides.
Side-effect mitigation
Monitor headache, fatigue, paradoxical stimulation, sedation, sleep disruption, or emotional flattening. Avoid overlapping multiple neuroactive agents initially.
Stack compatibility
May pair with complementary neuropeptides, mitochondrial agents, or sleep protocols, but single-variable testing is preferred for interpretability.
Storage & stability
Lyophilized: refrigerated or controlled cool storage. Reconstituted: refrigerated, protected from heat/light, and handled aseptically.
Protocol duration & reassessment
Use short, interpretable blocks or situational protocols. Reassess after 2-4 weeks for sleep, mood, focus, headaches, stimulation/sedation, and whether continued use is justified.
Frequently asked questions
What is Semax and how does it work?
Semax is a neuroactive ACTH(4-10) analog researched for cognition, attention, and neuroprotection. Mechanistic interest includes BDNF-related signaling, monoamine modulation, and stress-resilience pathways.
What is the half-life of Semax?
Semax: Short acting. Human pharmacokinetics are not standardized. Treat exposure as short acting unless compound-specific data or formal formulation labeling indicates otherwise.
How is Semax reconstituted for research?
Preferred reconstitution for the 10 mg vial is 2 mL BAC Water, giving 0.050 mg/unit. Always confirm concentration math before any use. Research use only.
Is Semax FDA approved?
No. Semax is an investigational research-use-only compound - not for human or animal consumption and not FDA approved.
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External references: Peptide (Wikipedia) · U.S. Food and Drug Administration