What does Mechano growth factor do? Benefits and evidence

A muscle-repair peptide idea with mixed lab findings and no human dosing studies.

Also called: MGF, Non-PEG MGF, MGF E peptide, MGF-Ct24E, IGF-1Ec E-domain peptide.

IGF-1 splice variants · Synthetic E-domain peptide associated with IGF-1Ec · Evidence: Animal studies only.

MGF usually means a synthetic fragment linked to an IGF-1 splice variant. People inject it for muscle growth and injury recovery. Some animal and cell studies found effects, but an independent muscle-cell study did not reproduce them. No human dosing study or reliable safety rate was found.

  • In animal studies, MGF and a related peptide improved tendon healing and ligament strength. (animal)
  • Early lab work found more muscle-cell growth, but a later independent cell study did not repeat it. (animal)
  • People report using it for muscle growth and injury recovery; no human study has tested this. (Reported by users)

Uses in the sources

  • People report use for muscle growth; no controlled human benefit has been demonstrated. (Reported by users) (source)
  • People discuss injury or workout recovery; animal MGF findings cannot establish human benefit. (Reported by users) (source)

Related to Mechano growth factor (MGF)

Sources

Sources checked: 2026-10-18.

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