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Semax

Nootropic & CognitiveResearch Use Only

Also known as: ACTH(4-10) analog

A focus-and-cognition peptide taken as a nasal spray, widely used in Russian clinical practice.

Dosing quick reference

research reference
Starting dose
200 mcg per spray (intranasal)
Frequency
Daily or 10-day courses, intranasal
Typical range
200–1,200 mcg per day; courses to 6 mg/day
Cycle
10-day courses with breaks
Nasal spray, not injected — dissolve to a measured volume and count sprays (typ. 100–200 mcg per spray).
Half-life
Short (minutes to ~1 hour parent peptide)
Route
Intranasal (research)
Common use
Cognitive focus and neuroprotection (research)
Common vial sizes
5 mg · 10 mg
Storage
Store lyophilized powder frozen or refrigerated; once reconstituted, refrigerate at 2-8°C and use within several weeks.
Stacking notes
Often referenced alongside Selank in nootropic research discussions.

Reported side effects

Nasal irritationMild headacheTransient changes in alertness
Calculate a dose →Semax on The Peptide Guide →Deeper research reference: literature dose ranges, storage and handling, and where to source in Canada.

Dose figures are ranges commonly referenced in research literature, not recommendations or medical advice. Research-only labeling does not establish that a substance is safe, approved or appropriate for personal use. Consult a qualified healthcare professional about health decisions.