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Unlike stimulant-based cognitive enhancers that borrow energy from tomorrow to pay for today's focus, peptide nootropics like Semax, Selank, Dihexa, and P21 work by optimizing the brain's underlying neurochemistry and structural integrity, producing sustainable improvements in memory formation, information processing, mental clarity, and cognitive resilience under stress
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Meretoja, A
doi: 10.1038/sj.bjp.0706912 123 BrhlHCihakJPlachJKunz-SchughartLNiedermeierMDenzelAet al
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