§ Same category · Cognitive peptides
PE-22-28 vs Selank
Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.
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PE-22-28
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vendors tracked
Selank
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vendors tracked
PE-22-28
Synthetic antidepressant peptide
No current listings at 5mg.
Selank
Anxiolytic neuropeptide
No current listings at 5mg.
About PE-22-28
A seven-residue peptide derived from the spadin sequence (SORT1 fragment), studied for rapid-acting antidepressant effects via TREK-1 channel blockade.
About Selank
A synthetic heptapeptide derived from tuftsin, studied in Russian neuropharmacology research for anxiolytic and nootropic effects.