What is the half-life of PEG-MGF?
PEG-MGF has a reported half life of ~3-6 hours, given subcutaneous. That is why it is typically dosed post-workout, 1-2x weekly. A shorter half life means more frequent dosing to keep blood levels steady, a longer one lets you space doses further apart.
Quick facts
- Half-life: ~3-6 hours
- Route: Subcutaneous
- Typical schedule: Post-workout, 1-2x weekly
- Cycle length: 4-6 weeks max
References
- Different roles of the IGF-I Ec peptide (MGF) and mature IGF-I in myoblast proliferation and differentiation — Yang SY & Goldspink G, FEBS Letters, 2002
- Mechano-Growth Factor: an important cog or a loose screw in the repair machinery? — Zabłocka B, Goldspink PH, Goldspink G, Górecki DC, Frontiers in Endocrinology, 2012
Pepdex is an editorial reference, not medical advice. Peptides vary in legal and approval status by country, many are research compounds without full human safety data. Talk to a qualified clinician before starting anything.
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Last updated 2026-06-06.