All free · no sign up

Semax Dosage Calculator

Calculate Semax injection volumes. Pre-filled for a 10mg vial with 2ml BAC water (5,000 mcg/ml). Typical 200mcg dose = 0.04ml = 4 units.

Dose Reference Table

Pre-calculated for a 10mg vial + 2ml BAC water = 5,000 mcg/ml concentration. Using a 100-unit (1ml) insulin syringe.

Dose Inject Volume (ml) Syringe Units
100mcg 0.020 ml 2 units
200mcg 0.040 ml 4 units
300mcg 0.060 ml 6 units
500mcg 0.100 ml 10 units
1000mcg 0.200 ml 20 units

About Semax

Semax is a synthetic heptapeptide derived from ACTH (adrenocorticotropic hormone), specifically from the fragment ACTH(4-7). It was developed in Russia at the Institute of Molecular Genetics and is approved in Russia and Ukraine for use in cognitive disorders, stroke treatment, and neuroprotection. Outside these countries, Semax is researched as a nootropic and neuroprotective agent.

Semax's primary researched mechanisms include increasing BDNF (brain-derived neurotrophic factor) levels, modulating dopamine and serotonin systems, and providing neuroprotective effects. Research has explored its potential for cognitive enhancement, memory improvement, attention, and neurological recovery after injury.

Unlike stimulants, Semax is thought to work by supporting the brain's natural plasticity mechanisms rather than simply increasing neurotransmitter activity. Many researchers report enhanced focus and learning without jitteriness or crash effects.

Semax is supplied in 10mg vials. Using 2ml of BAC water gives 5,000 mcg/ml. Common injectable research doses range from 200–600mcg, 1–2 times daily. It has a short half-life of approximately 20 minutes, though neurological effects are reported to persist longer. It can also be administered intranasally.

Frequently Asked Questions

Common injectable research doses range from 200–600mcg, 1–2 times daily. For a 10mg vial + 2ml BAC water (5000 mcg/ml), 200mcg = 0.04ml = 4 units.
Semax increases BDNF levels, modulates dopaminergic and serotonergic systems, and provides neuroprotective effects. It is thought to enhance neuroplasticity and cognitive function.
Semax is more stimulating and cognitive-enhancing (focus, memory, attention). Selank is primarily anxiolytic (anti-anxiety). Many researchers use Semax in the morning for focus and Selank as needed for anxiety management.
Yes — Semax was developed as a nasal spray and intranasal administration is very common. For intranasal use, a higher concentration is typically prepared (e.g., 1ml BAC water for 10mg = 10,000 mcg/ml).
Semax has a half-life of approximately 20 minutes, but cognitive effects are often reported to last several hours. This may be due to downstream BDNF and neurotrophic effects that persist beyond the peptide's direct action.
Selank Dosage Anxiolytic nootropic peptide. BPC-157 Dosage Healing peptide calculator. Epithalon Dosage Anti-aging peptide. Peptide Dosage Chart Reference for all peptides.