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BPC-157 $0.12/mg|Tirzepatide $2.40/mg|Semaglutide $1.95/mg|Retatrutide $2.90/mg|TB-500 $3.50/mg|MOTS-C $2.25/mg|GHK-Cu $0.37/mg|Cagrilintide $8.00/mg▼ 46.7% · 30d|BPC-157 $0.12/mg|Tirzepatide $2.40/mg|Semaglutide $1.95/mg|Retatrutide $2.90/mg|TB-500 $3.50/mg|MOTS-C $2.25/mg|GHK-Cu $0.37/mg|Cagrilintide $8.00/mg▼ 46.7% · 30d|
cognitive

P-21

CNTF-mimetic cognitive peptide

Cheapest offer
$9.92/mg
4 vendors tracked4 live prices
About

An 11-mer fragment derived from ciliary neurotrophic factor (CNTF), studied for neurogenesis and cognitive enhancement in preclinical models.

Also known as: P21, CNTF-mimetic

Reconstitution calculator
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For research purposes only. Not for human consumption. Always verify calculations independently.
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P-21 · 5mg

1 vendors
A
Core Peptides
US
Operational
$116.00
$23.20/mg· $5.80/dose
In stock◎ Best $/mg
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2026-06-10

P-21 · 10mg

1 vendors
B
Nexus Peptides
US
Operational
$139.99
$14.00/mg· $3.50/dose
In stockOn sale
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2026-06-10

P-21 · 12mg

2 vendors
B-
Atomik Labz
US
Operational
$119.00
$9.92/mg· $2.48/dose
In stock◎ Best $/mg
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B-
Solution Peptides
US
Watch
$119.00
$9.92/mg· $2.48/dose
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2026-06-10

Research use only. The compounds listed on this page are not approved for human use through research-chemical channels. Nothing on this page is medical advice. Consult a qualified clinician before considering any peptide protocol. See affiliate disclosure and our scoring methodology.

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