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Cognitive

Cortexin

Price and cost-per-mg comparison

Cortexin is a polypeptide bioregulator derived from porcine cerebral cortex, used clinically in Russia and Eastern Europe as a neuroprotective and nootropic agent for stroke, traumatic brain injury, and chronic cerebrovascular disorders. It contains a complex mixture of tissue-specific neuropeptides, amino acids, and microelements proposed to support neuronal survival, reduce excitotoxic damage, and promote neurotrophic factor expression in injured brain tissue. Russian clinical trials have examined cortexin in acute ischemic stroke rehabilitation and other neurological conditions, with results suggesting potential benefit in functional recovery, though studies are predominantly published in Russian-language journals with limited methodological transparency by international standards. Cortexin is not FDA-approved; it is a licensed prescription drug in Russia and several post-Soviet states, where it has regulatory approval for neurological indications. Cortexin administration: in clinical settings where it is approved, cortexin is administered by intramuscular injection, typically as a 10 mg dose reconstituted in saline or procaine. Clinical courses in Russian practice involve daily injections over 10-day cycles, repeated 1–2 times per year for chronic neurological conditions. This administration pattern is common to several Russian polypeptide bioregulators, including cerebrolysin — another porcine-derived peptide mixture with a broader international clinical trial dataset — and cortagen, a cardiac-focus bioregulator from the same pharmacological class. Cortexin is the cerebral-cortex-specific member of this class; cortagen targets cardiovascular tissue, and thymalin targets thymic/immune tissue. Provider availability for cortexin outside Russia is limited compared to peptides with international regulatory approvals; it is occasionally carried by compounding pharmacies and specialized nootropic suppliers. The PeptideBase cognitive peptides directory lists providers who carry neuroprotective peptide compounds.

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2 listings · 2 vendors · updated 28 Sept 2026 · how prices are computed · educational only, not medical advice

Lowest cost per mg2 vendors compared
$3.00per mg
PeptidePlugs · $60.00 for 20 mg vial
Vendor feed · checked 2 wk ago · in stock · 8 COAs on file
View at vendor ↗

Compare listings

Filter by vial size and quantity — the figures and table follow.

Vial size
Quantity
Lowest cost per mg
$3.00
20 mg vial · PeptidePlugs
Median cost per mg
$3.30
2 listings
Cheapest listing
$60.00
20 mg vial · PeptidePlugs
Vendors
2
2 with a COA on file · 2 listings in stock
2 listings
VendorSizePriceCost per mg▲COASourceAvailabilityActions
Other sizessingle vials, one listing each1 listing
US
Cortexin 20mg
20 mg vial$60.00$3.00Vendor feed · 2 wk agoIn stockView ↗
10 × 10 mg10-vial packs1 listing
CA
Cortexin — 10 × 10mg | Brain Peptide Complex – Geropharm (St. Petersburg, Russia)
10 × 10 mg100 mg total$359.28$35.93 / viallisted CAD 499.00$3.59Vendor feed · 2 wk agoIn stockView ↗

— in COA: no certificate on file for this vendor— in availability: stock not read at the last checkPrices as scraped; foreign prices converted to USD

Price movement

When Cortexin prices moved

0 days in the last 120 on which a feed run read comparable Cortexin prices from 3 or more vendors. Each point is the median $/mg across every comparable listing read that day, sized by how many vendors were read. A log of run days, not a continuous series.

Fewer than two qualifying days in the last 120 · checked 28 Sept 2026
Methodology

How these prices are computed

The short version. The methodology page has the rest.

Source

Prices are read from each vendor's own store feed or product markup (Vendor feed). Every row says which source it came from and when it was read. Prices parsed from page text are not in this index.

$/mg

Listed price ÷ stated milligrams, converted to USD. Packs are priced on total milligrams. Listings sold per kit, per ml, as capsules or sprays, as blends, or without a stated mass are shown but not ranked.

Population

Active online research vendors only. Clinic, pharmacy and telehealth prices are excluded. Medians and the p25–p75 band are computed over comparable listings, one row per vendor product and size.

Independence. Ranking in this index: 0 paid placements.

PeptideBase accepts no payment for inclusion in this index.

PeptideBase takes no affiliate commission on vendor sales.

Ordering is by price, from scraped data.

Educational research tools — not medical advice.

Vendor names, product names and prices are as scraped from each vendor's site on the date shown. A COA count is what the vendor publishes and PeptideBase has on file; PeptideBase does not test products itself. Finnrick grades are a third party's rating, reported as-is. Counts are as of 28 Sept 2026.

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