Semax vs PE-22-28
Stimulating nootropic vs antidepressant-oriented peptide.
| Attribute | Semax ACTH(4-10) analog | PE-22-28 Spadin analog |
|---|---|---|
| Category | Brain & Cognitive Support | Brain & Cognitive Support |
| Best known for | Cognitive enhancement research | TREK-1 potassium channel antidepressant research |
| In plain English | Semax is the focus peptide. Researchers study how it boosts BDNF and NGF — the brain's growth and repair factors. | It blocks a brain potassium channel involved in mood regulation, aiming for fast-acting antidepressant effects. |
| How it works | Upregulates BDNF and NGF expression, modulates dopamine and serotonin, and inhibits enkephalin breakdown. | Selectively inhibits the TREK-1 two-pore potassium channel, enhancing serotonergic transmission in mood-relevant circuits. |
| Researchers study | Cognitive function, ischemic stroke recovery, ADHD, and neuroprotection. | Depression, anxiety, and stress-resilience models. |
| Internet discussion | Stacked with Selank as the canonical Russian nootropic combo. | Discussed in advanced nootropic and mood research circles. |
Semax
Cognitive enhancement research
Semax is the focus peptide. Researchers study how it boosts BDNF and NGF — the brain's growth and repair factors.
Upregulates BDNF and NGF expression, modulates dopamine and serotonin, and inhibits enkephalin breakdown.
Cognitive function, ischemic stroke recovery, ADHD, and neuroprotection.
Stacked with Selank as the canonical Russian nootropic combo.
Semax is a nootropic peptide researched for BDNF/NGF upregulation and cognitive support.
PE-22-28
TREK-1 potassium channel antidepressant research
It blocks a brain potassium channel involved in mood regulation, aiming for fast-acting antidepressant effects.
Selectively inhibits the TREK-1 two-pore potassium channel, enhancing serotonergic transmission in mood-relevant circuits.
Depression, anxiety, and stress-resilience models.
Discussed in advanced nootropic and mood research circles.
PE-22-28 is a spadin-derived TREK-1 blocker researched as a fast-acting antidepressant peptide.