30 years of cognitive research. One nasal spray.
NA-Semax (N-Acetyl Semax) is an acetylated variant of Semax — a synthetic peptide derived from the 4-7 fragment of adrenocorticotropic hormone (ACTH). The N-acetyl modification improves stability and bioavailability compared to Semax. It was developed over 30+ years at the Institute of Molecular Genetics in Russia and has accumulated a substantial body of clinical research.
Nasal delivery is not incidental — it is the clinically established route. The nasal mucosa provides direct access to the central nervous system via the olfactory pathway, bypassing the blood-brain barrier that limits systemic delivery of many peptides.
NA-Semax's primary mechanism is upregulation of BDNF (Brain-Derived Neurotrophic Factor) and NGF (Nerve Growth Factor) — proteins essential for neuron survival, synapse formation, learning, and memory. Research also documents enhanced dopamine and serotonin turnover in prefrontal cortex regions associated with focus and executive function.
BDNF is often called the brain's fertilizer — it supports the growth, maintenance, and survival of neurons and is reduced in conditions including depression, cognitive decline, and chronic stress. NA-Semax reliably increases BDNF in clinical studies, which is a primary mechanism behind its cognitive effects.
Clinical studies have established NA-Semax in Russian medical practice for cognitive decline, stroke recovery, ADHD, and attention disorders. Research consistently shows improvements in working memory, attention span, learning speed, and stress resilience.
A key study showed NA-Semax significantly increased BDNF levels in plasma and cerebrospinal fluid within 30 minutes of intranasal administration. Cognitive performance studies using psychometric testing showed statistically significant improvements in attention, processing speed, and working memory compared to placebo.
All information is for educational purposes. These statements have not been evaluated by the FDA. Products are not intended to diagnose, treat, cure, or prevent any disease.
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