Insulin Like Growth Factor 1 (IGF 1) Physiopedia Switched things up and have been using my IGF 1 LR3 30 mins pre workout and have been noticing longer lasting pumps and more vascularity so far! 2 more weeks until I cycle IGF 1 LR3 Peptide 1mg for Fast Muscle Growth ElixerMD Zeusworldpharma IGF 1 LR3 Advanced Growth Factor for Muscle Growth and Recovery ZeusworldPharma Igf 1 LR 3 Enhanced Pharmaceuticals Muscle Growth Montreal Peptides Canada (PC)