§ Same category · Cognitive peptides
Noopept vs PE-22-28
Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.
Pepticker may earn affiliate commissions (typically 5-20%) from linked vendors. See our Affiliate Disclosure.
Noopept
0
vendors tracked
PE-22-28
0
vendors tracked
Noopept
Peptide-derived nootropic
No current listings at 20mg.
PE-22-28
Synthetic antidepressant peptide
No current listings at 5mg.
About Noopept
A dipeptide derivative of piracetam studied for memory enhancement and neuroprotection. Technically a pro-drug, but widely sold in peptide stores.
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.