§ Same category · Cognitive peptides
N-Acetyl Selank vs P-21
Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.
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N-Acetyl Selank
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vendors tracked
P-21
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vendors tracked
N-Acetyl Selank
Acetylated Selank for stability
No current listings at 5mg.
P-21
CNTF-mimetic cognitive peptide
No current listings at 5mg.
About N-Acetyl Selank
An N-terminus acetylated version of Selank with improved metabolic stability. Research compound only.
About P-21
An 11-mer fragment derived from ciliary neurotrophic factor (CNTF), studied for neurogenesis and cognitive enhancement in preclinical models.