PEG-MGF
Naturally occurring 24-amino acid peptide
Overview
Note: This PeptideSCM entry is a related form of the subject; the overview below is from the English Wikipedia article "Mechano growth factor".
Mechano growth factor (MGF, IGF-IEc) is a naturally occurring 24-amino acid peptide which is the C-terminal fragment derived from enzymatic cleavage of insulin-like growth factor 1 (IGF-1). It is expressed during muscle repair following physical activity, and has anabolic effects. This has led to illicit use by athletes leading to MGF being banned by the World Anti-Doping Association.
At least one research paper raised concerns about the potential carcinogenicity of this compound.
Source: English Wikipedia, "Mechano growth factor".