Quick google search found....Mechano Growth Factor E peptide (MGF-E), derived from an isoform of IGF-1, activates human muscle progenitor cells and induces an increase in their fusion potential at different ages. Mech Ageing Dev.
Never used it but it has been around for years. What do you want it for? Most sources tell you what their peptides do and their inteded uses.
Do yourself a favour and do a bit of research on something before you start poking yourself with it.
Here is a link to a post on evo about mgf https://www.evolutionary.org/forums...th-factor-mgf-doses-cycles-benefits-si.86820/