An ACTH(4-7)PGP analogue originally developed for stroke recovery that significantly enhances BDNF, focus, and memory — available from research vendors with no prescription required.
| Provider | Type | Price | Promo | Link |
|---|---|---|---|---|
| NextGenPeps | Research | $39 / 10mg | 3LUIZH10 | Visit Site → |
Research use only — no prescription required. Telehealth vs. Research explained →
Semax is a synthetic heptapeptide analogue of the ACTH(4-7) fragment with an added Pro-Gly-Pro (PGP) sequence that dramatically extends its half-life and brain penetration. It was developed at the Institute of Molecular Genetics in Russia during the 1980s and has been used clinically there for stroke recovery, ischemic brain injury, and cognitive enhancement.
Semax's primary mechanism is upregulation of BDNF (brain-derived neurotrophic factor) — increasing levels 2–4× in the hippocampus and prefrontal cortex, the regions most responsible for learning, working memory, and executive function. It also modulates dopaminergic and serotonergic signaling, and has neuroprotective effects against oxidative stress and ischemic damage.
Most users report improved focus, sharper recall, and reduced mental fatigue within the first few days of use. Unlike stimulants, Semax does not increase heart rate or cause jitteriness. There is no reported tolerance buildup or dependence with standard 2–4 week cycling protocols. Effects may persist for weeks after a cycle ends due to lasting BDNF elevation.
Use code 3LUIZH10 at NextGenPeps for a discount on Semax.