How Semax works
Semax is a synthetic fragment of ACTH with the hormonal activity stripped out. It raises BDNF and NGF expression in the hippocampus and modulates dopaminergic and serotonergic tone, which is why the effect reads as sharper attention rather than stimulation.
Reported benefits
- Increased BDNF and neuroplasticity
- Sharper focus and working memory
- Neuroprotection under ischaemic or oxidative stress
- Non-stimulant mechanism
Reported side effects
Effects reported in published trials, case reports or post-market surveillance. Individual response varies; this list is educational and not exhaustive.
- Nasal irritation with intranasal use
- Headache and irritability
- Sleep disruption if dosed late
- Human data largely limited to Russian clinical practice
Regulatory status & sources
Not FDA approved — research use only
No FDA approval. Semax is a registered medicine in Russia; Western regulatory review is absent.
Safety note
Semax is presented here for research and educational purposes only. It is not offered for human consumption and nothing on this page is medical advice or a dosing protocol. Read the full safety and disclaimer page.