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Cognitive

FGL

Price and cost-per-mg comparison

FGL (EVYVVAENQQGKSKA) is a synthetic 15-amino-acid peptide derived from the fibronectin type III homology domain 2 of the neural cell adhesion molecule (NCAM), designed as a pharmacomimetic agonist of NCAM to activate FGFR-mediated neurotrophic signaling and mimic the synaptogenic and neuroprotective effects of NCAM receptor engagement in the central nervous system. FGL activates downstream FGFR signaling to promote synaptic plasticity, neuronal survival, and spatial learning in preclinical models; rodent studies have demonstrated cognitive-enhancing and anxiolytic effects in aged animals and in models of neurodegeneration, establishing a preclinical rationale for further investigation. No published human clinical trials, pharmacokinetic studies, or safety evaluations of FGL have been indexed in PubMed; the entirety of the evidence base consists of animal and in vitro studies, and no regulatory body has approved or evaluated FGL for any human indication. FGL has no FDA approval or regulatory approval in any jurisdiction; it is a research compound with a defined neurotrophic mechanism and an exclusively preclinical evidence base, and no clinical data exists to inform its pharmacokinetics, safety, or therapeutic utility in humans.

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1 listings · 1 vendors · updated 28 Sept 2026 · how prices are computed · educational only, not medical advice

Lowest cost per mg1 vendors compared
$9.93per mg
Behemoth Labz · $297.95 for 30 mg vial
Vendor feed · checked 2 wk ago · in stock · no COA 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
$9.93
30 mg vial · Behemoth Labz
Median cost per mg
$9.93
1 listing
Cheapest listing
$297.95
30 mg vial · Behemoth Labz
Vendors
1
0 with a COA on file · 1 listing in stock
1 listings
VendorSizePriceCost per mg▲COASourceAvailabilityActions
Other sizessingle vials, one listing each1 listing
US
FGL
30 mg vial$297.95$9.93—Vendor 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 FGL prices moved

0 days in the last 120 on which a feed run read comparable FGL 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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