Nootropic · 5mg × 10 vials
it sharpens focus and mood by triggering the brain's own growth-factor and reward signaling, without sedation or stimulant-style crash.
Semax is a synthetic heptapeptide (Met-Glu-His-Phe-Pro-Gly-Pro) derived from the ACTH 4-10 fragment, with the C-terminal Pro-Gly-Pro tail added by Russian researchers in the 1980s to block proteolytic breakdown and let the molecule survive long enough to cross the blood-brain barrier intranasally. Unlike ACTH itself, Semax has no significant corticotropic effect, so it does not push cortisol or HPA-axis output. What it does instead is acutely upregulate BDNF (brain-derived neurotrophic factor) and NGF (nerve growth factor) gene expression in the hippocampus and basal forebrain, modulate the dopaminergic and serotonergic systems in the limbic structures and basal ganglia, and inhibit enkephalin-degrading enzymes, raising endogenous opioid tone in a non-addictive way. Functionally that translates to improved attention, working memory, motivation, mood resilience, and accelerated neuronal recovery after ischemic insult. It is a registered drug in Russia and Ukraine for ischemic stroke, transient ischemic attack, optic nerve atrophy, ADHD, and post-encephalopathy cognitive impairment, and has 30+ years of domestic clinical use behind it. In plain language: it sharpens focus and mood by triggering the brain's own growth-factor and reward signaling, without sedation or stimulant-style crash.
Typical dose ranges by experience level - educational reference. Message us and we tailor it to you.
First-time users almost always notice acute focus/mood lift within the first 1-3 doses. If you don't, the dose is too low or the route is off (intranasal absorption varies; SubQ is more reliable for dose-response). Standard 10 mg kit reconstituted to 5 mg/ml means 250 mcg = 0.05 ml = 5 IU on a U-100 syringe. Intranasal: 1 drop = ~250 mcg.
This is the "working dose" range for cognitive performance, focus stacks, and ADHD adjunct use. Community consensus on r/Nootropics is that 600-800 mcg/day split is the sweet spot for daily users - higher doses don't linearly improve focus and can flatten emotional range. Pair with Selank at the same dose for the classic anxiolytic + nootropic profile.
Russian stroke protocols use 12-18 mg/day (12,000-18,000 mcg) intranasally in acute ICU settings for 10 days - that's a clinical inpatient dose, not a community use case. For research-use community dosing, advanced is 1-1.5 mg/day. Cycle breaks matter at this level: 4-8 weeks on, 2 weeks off prevents the BDNF response from tapering.
Straight talk - what people actually report, and what the studies measured.
Peer-reviewed studies and clinical guidelines - tap any to read the source.
, regulates BDNF and trkB expression in the rat hippocampus](https://pubmed.ncbi.nlm.nih.gov/19035441/) - Dolotov et al., foundational paper on BDNF upregulation mechanism
Read study ↗PubMedEffects of Semax on the default mode network of the brain (fMRI study)](https://pubmed.ncbi.nlm.nih.gov/29143938/) - Lebedeva et al., functional imaging in healthy volunteers showing DMN modulation
Read study ↗PubMedSemax in acute ischemic stroke: a multicenter, randomized clinical trialGusev et al., 110-patient Russian trial showing reduced neurological deficit at 30 days
Read study ↗PubMedSemax for cognitive impairment after ischemic stroke (Cochrane-style review)](https://pubmed.ncbi.nlm.nih.gov/22230426/) - meta-analysis of Russian stroke recovery trials
Read study ↗PubMedSemax for ADHD in children: a randomized controlled studyRussian pediatric ADHD trial demonstrating efficacy
Read study ↗PubMedHeptapeptide Semax inhibits enkephalin-degrading enzymesZolotarev et al., enkephalinase inhibition mechanism
Read study ↗Aggregated sentiment from public forums & socials - real-world reports, not individual endorsements.
Acute focus/alertness lift: most-reported effect, often within 15-30 min of first dose (intranasal) or 30-60 min (SubQ)
Mood elevation: common, described as "calm motivation" or "drive without the edge of stimulants"
Mild euphoria at higher doses (700+ mcg): reported but inconsistent; some users describe it, others don't
Talkativeness / extraversion bump: well-documented anecdotally - Semax raises social engagement, especially for introverted users
Mild fatigue or "flatness" on cycle-off: some users report a brief crash 2-3 days after stopping a long run, resolves in a week
Tachyphylaxis (diminishing effect with continuous daily use): real and well-reported on r/Nootropics - Semax loses subjective punch after 4-8 weeks straight, which is why pulsing protocols matter
Route: intranasal (Russian clinical standard) or SubQ (Western community standard)
Storage: refrigerated, ~14-21 days after reconstitution (peptide is more stable than GLP-1s but less stable than BPC-157). Unreconstituted vials stable at room temp short-term, refrigerated long-term.
Notes: Intranasal is the Russian clinical route and the one with all the published trial data behind it. SubQ works fine and is cleaner-dosed for community users who want precision, but bypasses the direct nose-to-brain transport that's part of how Semax was designed to work. Morning to early afternoon dosing only - late dosing can disrupt sleep due to the dopaminergic/alerting effect. Light-sensitive: keep reconstituted vials in dark fridge compartment.