Cognitive & Nootropic
This pillar covers peptides discussed for cognition, focus and neuroprotection. Much of the human research originates outside large Western trials, so evidence quality is labeled carefully on each page.
Cerebrolysin
HumanA mixture of low-molecular-weight neuropeptides and amino acids derived from pig brain, used clinically in some countries for stroke and dementia.
Dihexa
AnimalAn angiotensin-IV-derived compound studied in preclinical models for unusually potent synapse-forming (synaptogenic) activity.
P21
AnimalA peptidomimetic derived from a region of ciliary neurotrophic factor (CNTF), studied in animal models for neurogenesis and neuroprotection.
PE-22-28
AnimalA peptide derived from spadin, studied in animal models as a potential rapid-acting antidepressant through TREK-1 channel blockade.
Selank
MixedA synthetic peptide derived from the immune fragment tuftsin, studied mainly in Russia for anxiolytic and mild cognitive effects.
Semax
MixedA synthetic peptide derived from a fragment of ACTH, developed and used clinically in Russia and discussed for cognition and neuroprotection.