§ Same category · Cognitive peptides
Noopept vs P-21
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
P-21
0
vendors tracked
Noopept
Peptide-derived nootropic
No current listings at 20mg.
P-21
CNTF-mimetic cognitive 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 P-21
An 11-mer fragment derived from ciliary neurotrophic factor (CNTF), studied for neurogenesis and cognitive enhancement in preclinical models.