PeptideResearch use only

Where to buy P-21

Research-grade P-21 (P021), a small CNTF-derived peptidic research compound studied in neurotrophic and neurogenesis research models. Compare vendor prices. Research use only.

PeptideTech does not manufacture or sell P-21 (P021). This is an independent price comparison of research-use listings from vetted, third-party-testing vendors — the links below go to each vendor’s own store.

Where to buy P-21 (P021)

1 vendor
American PeptidesPartnerLowest pricecode PEPTECH
Size variesIn stock
$/mg n/a
$120
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Prices checked Aug 27, 2026

Links to vendors are affiliate links — we may earn a commission at no extra cost to you. Prices and stock are set by each vendor and may change. Peptide Technologies no longer sells retail.

Best price
$120
at American Peptides
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Use this code at American Peptides checkout
Third-party testedCOA-backedRUO

Links to vendors are affiliate links — we may earn a commission at no extra cost to you. Prices and stock are set by each vendor and may change. Peptide Technologies no longer sells retail.

About P-21 (P021)

P-21 (also written P021) is a small peptidic research compound derived from the ciliary neurotrophic factor (CNTF) region, studied as a reference material in in-vitro neurogenesis and neurotrophic-signaling research. This page compares research-use listings from vetted vendors by price; PeptideTech does not manufacture or sell P-21. For laboratory research use only — not for human or veterinary use.

For laboratory research use only. Not for human or veterinary use, diagnosis, treatment, or consumption.

P-21 (P021) — frequently asked questions

Affiliate disclosure. Peptide Technologies is a wholesale manufacturer and no longer sells retail. The vendor links on this site are affiliate links — we may earn a commission at no additional cost to you. Vendor names, prices, and stock belong to each vendor, are gathered from public sources, and can change or be out of date. A listing is not medical advice or an endorsement of any research use. For laboratory research use only.

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