§ Same category · Cognitive peptides
P-21 vs Semax
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.
P-21
0
vendors tracked
Semax
0
vendors tracked
P-21
CNTF-mimetic cognitive peptide
No current listings at 5mg.
Semax
Nootropic ACTH fragment
No current listings at 5mg.
About P-21
An 11-mer fragment derived from ciliary neurotrophic factor (CNTF), studied for neurogenesis and cognitive enhancement in preclinical models.
About Semax
A synthetic heptapeptide based on an ACTH(4-10) fragment. Studied in Russian neurology for neuroprotection and cognitive enhancement.