FGL

Also known as: FG Loop Peptide, NCAM Mimetic

Peptide mimicking the FG loop of NCAM; activates FGFR1 signaling for neurite outgrowth, synaptic plasticity, and neuroprotection.

Typical dose
200 mcg – 1 mg
Frequency
once daily
Route
Subcutaneous
Half-life
1.5 hours
Routes
Subcutaneous
Status
Research chemical
Track your FGL protocol in Vial →

Benefits

Dosing

A common research range for FGL is 200 mcg to 1 mg once daily. Experimental; limited human use data. These figures are reference points from published literature, not a prescription — your protocol should be set with a licensed provider.

Reconstitution

A typical reconstitution for FGL is 5 mg of peptide in 2 mL of bacteriostatic water, giving roughly 2.5 mg per mL. Vial's built-in calculator works out the exact syringe draw for any vial size and dose.

Half-life

FGL has an approximate half-life of 1.5 hours. Vial plots the real concentration curve from your logged doses so you can see peak windows and when levels taper.

Storage

2-8°C post-reconstitution.

Reported side effects

Contraindications

Commonly stacked with

DihexaSemax

Track FGL with Vial

Vial logs every FGL dose, plots its half-life curve, calculates reconstitution math, and keeps your whole protocol on schedule — on-device and private. Download Vial on the App Store →

This page is for educational and harm-reduction purposes only. FGL is not FDA-approved for most uses described here. Always consult a licensed physician before starting any peptide protocol. Vial does not sell peptides, recommend vendors, or provide medical advice.