Neurological Peptides

Cerebrolysin enhances cognitive function and offers neuroprotection post-stroke, with Level 2 evidence from systematic reviews. Selank produces anxiolytic effects and improves cognitive function with a distinctly calming character that distinguishes it from Semax. Humanin may protect against Alzheimer's disease and provides neuroprotection, with Level 3 evidence from randomized controlled trials. Intranasal delivery is effective for CNS-targeted peptides such as oxytocin, selank, and semax. Vasoactive intestinal peptide (VIP) regulates smooth muscle activity, supports GI blood flow, and modulates sleep and circadian rhythm.