Reviewed by PeptideGuide Research Team|Last updated February 15, 2026
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Side-by-Side Comparison
Property
P21
Cerebrolysin
Name
P21
Cerebrolysin
Peptide Class
Nootropic peptide
Neuropeptide mixture
Category
Cognitive and Nootropic
Cognitive and Nootropic
Dosage Range
N/A
5-30 ml per day
Half-Life
N/A
N/A
FDA Status
Not Approved
Not FDA approved
Safety Rating
Research Only
Prescription Required
Cost Estimate
N/A
$200-400 per cycle
P21
P21 is a nootropic peptide primarily explored for its potential to enhance cognitive functions and improve memory. It is categorized under cognitive a...
View full profile →Cerebrolysin
Cerebrolysin is a neuropeptide mixture used primarily for its cognitive-enhancing and neuroprotective properties. It is commonly administered via intr...
View full profile →