IGF 1 LR3 The Muscle Building Peptide Everyones Talking About , IGF 1 LR3 is one of the most powerful performance peptides used for muscle growth, recovery, and fat loss. Its a modified version Buy IGF 1 LR3 Peptide 99% Purity Free USA Shipping IGF 1 LR3 (1mg) True Lab Peptides Buy IGF 1 LR3 (100 mcg) Long R3 Insulin Like Growth Factor Analogue Pure Peptides UK Buy IGF 1 LR3 High Quality 99% Pure Peptide Works IGF 1 LR3 1mg Peptide: Growth Factor Research