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FGL Peptide
Overview
FGL peptide is a 15-amino acid synthetic sequence derived from the neural cell adhesion molecule (NCAM) that mimics the fibronectin-like domain. It promotes neurite outgrowth and synaptic plasticity by engaging NCAM and fibroblast growth factor receptors without requiring direct cell-cell adhesion.
Mechanism of Action
The peptide has been investigated for neuroprotective and cognitive-enhancing properties in models of neurological injury and disease.
Research Summary & Key Findings
Preclinical rodent studies have demonstrated improved spatial learning and memory in models of aging and neurodegeneration. Research published in the Journal of Neuroscience and related journals has shown FGL enhances hippocampal long-term potentiation and protects against excitotoxic injury. Human clinical trials have not been reported in peer-reviewed literature.
Clinical Status
FGL Peptide is in the research phase with limited clinical data in humans. Current evidence is primarily derived from preclinical (animal or in vitro) studies.
Administration Routes
References
Primary literature
- PubMed: "FGL Peptide"
Peer-reviewed literature indexed by the National Library of Medicine.
- ClinicalTrials.gov: "FGL Peptide"
Registered interventional and observational studies, including status and phase.
- PubChem: "FGL Peptide"
Chemical structure, molecular properties, and bioactivity data.
Study-level citations for this compound are being verified against the primary sources before publication. The database queries above return the current indexed literature in the meantime.
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View detailsNo lawful pathway today
FGL Peptide is not FDA-approved and does not currently have a lawful prescription or compounding pathway in the United States, so there is nothing for us to sell you here and no consultation to book. That can change: eight peptides moved back to a lawful pathway in February 2026.
Tell me if the status changes
One email, only if this compound's regulatory standing actually moves. Not a newsletter, not a sales sequence.
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List Your PracticeDisclaimer: This information is provided for educational and research purposes only. It is not intended as medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide therapy. The Peptide Association does not endorse or recommend any specific treatment protocol. See our editorial policy for how this content is produced and reviewed.