Cognitive Peptides
Nootropic and neuroprotective peptides, and the size of the human evidence base.
Semax
focus & cognitionBgrade
A Russian nootropic peptide derived from ACTH that supports focus, memory, and neuroprotection by raising BDNF.
Selank
focus & cognitionCgrade
A tuftsin-derived anxiolytic nootropic that lowers anxiety and supports calm focus without sedation or dependence.
Dihexa
focus & cognitionFgrade
An oral angiotensin IV analog studied as a memory aid in rodents — the foundational animal paper now carries a formal notice of concern, and no human trial exists.