FGL
Research profile · How we handle evidence
FGL is discussed as a peptide associated with fibroblast-growth-factor–linked pathways, usually framed around synaptic plasticity and learning/memory ideas. Published human safety and effectiveness evidence is limited, so treat the explanations as early research summaries.
Evidence Score
Preclinical signal
Category
Therapeutic area
Standard Dose
Daily
Half-life
Plasma elimination
Route
Subcutaneous or Intranasal
Safety Tier
Limited data
Overview
You’ll see FGL described as a synaptic-plasticity–leaning research peptide in some protocols. The safety and risk picture for humans isn’t well established, and ‘cognitive enhancement’ language is mostly theoretical. Use it as informational context, not as a substitute for clinical advice.
Mechanism of Action
You’ll see FGL described as a synaptic-plasticity–leaning research peptide in some protocols. The safety and risk picture for humans isn’t well established, and ‘cognitive enhancement’ language is mostly theoretical. Use it as informational context, not as a substitute for clinical advice.
pH & Mixing
Peptides reconstituted at very different pH levels can destabilize when combined in the same syringe, which lowers how much of the peptide your body actually absorbs. If you're unsure whether two peptides are close enough in pH, reconstitute and inject them separately.
A dedicated compatibility check between two specific peptides is coming to the Compare tool. This section covers this peptide's pH only.
Benefits
- Enhanced learning
- Memory improvement
- Synaptic plasticity
- Neuroprotection
Side Effects
- Limited published human safety data—tolerability can vary. Stop if you get unexpected side effects and get medical guidance
Contraindications
- Pregnant or breastfeeding women
Structure & Sequence
Verified structure
FGL
Illustration uses the catalog amino acid sequence because no exact external registry match was confirmed.
- Amino Acid Sequence
- EVYVVAENQQGKSKA
- Molecular Weight
- 1,649.83 Da
- Chemical Formula
- C71H116N20O25
- CAS Number
- N/A
- Reconstituted pH
- 6.5
Stack & Route Context
Stacks with
- Semax
- Selank
Administration
Subcutaneous or Intranasal
Research Status
Research peptide for cognitive enhancement
Approval Status
Preclinical
Sports Legal
Permitted
References
No references listed.
This profile summarizes research literature for education only. It is not medical advice, and it does not diagnose, treat, or recommend a dose. Consult a qualified professional before changing a protocol.