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11 peptides
Cognitive Enhancement
Semax, Selank, Dihexa, and Noopept are the most researched nootropic peptides. They act through BDNF, NGF, and dopaminergic pathways to improve memory, reduce anxiety, and protect neurons.
11 peptides in this category
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Semax
ACTH(4-10), NA-Semax
BGrade BSmaller human trials, observational studies, or approved in 30+ countriesCompoundableCompoundableLegal to compound in the US; approved in other jurisdictions or has historical approval
- Improves focus and memory
- Neuroprotective effects
- Reduces anxiety and stress
Selank
NA-Selank
BGrade BSmaller human trials, observational studies, or approved in 30+ countriesCompoundableCompoundableLegal to compound in the US; approved in other jurisdictions or has historical approval
- Anxiolytic (anti-anxiety) effects
- Nootropic cognitive enhancement
- Immune system modulation
Dihexa
N-hexanoic-Tyr-Ile-(6) aminohexanoic amide, PNB-0408
DGrade DTheoretical or in-vitro only; no meaningful independent human evidenceResearch OnlyResearch OnlyNo regulatory approval in any major jurisdiction; for research use only
- Dramatically improves cognitive function
- Promotes neurogenesis
- Enhances memory formation
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