Awesome results this year igf 1 lr3 ,cyp,e,primo then adding tren for 2 months then removed primo and tren added FTPP and diaing diet with labs and results hopefully helps : r Peptides Just over a year apart with 2 preps in between : r bodybuilding IGF 1 LR3 in Aesthetic and Anti Aging Medicine: Benefits and Risks Hubmed IGF 1 LR3 The Muscle Building Peptide Everyone's Talking About IGF 1 LR3 is one of the most powerful performance peptides used for muscle growth, recovery, and fat loss. It's a modified version Gut derived IL 13 contributes to growth via promoting hepatic IGF 1 production Microbiome Springer Nature Link