Compare peptides
Put two entries side by side — evidence, mechanism, risks, and community claims.
Semax
Limited
Research chemical
Summary
ACTH-derived nootropic peptide used in Russia for stroke and cognitive support; popular nasal nootropic abroad.
Categories
Cognitive & Nootropic
Mechanism
Upregulates BDNF and neurotrophic signaling; modulates monoamines; neuroprotective effects in ischemia models.
Half-life
Short; repeated nasal dosing
Routes
Intranasal; Subcutaneous injection
Legal / access
Used pharmaceutically in Russia; research chemical status in many other countries.
Key risks
- Nasal irritation
- Overstimulation if stacked with stimulants
- Blood pressure caution
Common claims
- Clean stimulation / focus
- Neuroprotection after poor sleep or stress
- Learning and memory support
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