IGF 1 LR3 100mcg 1mg Peptide Bulk Supply IGF 1 LR3: Dosage Results and Safety Guide Vita Bella Health Analysis of injectable peptides used for injury repair and regenerative therapies Inslab Independent Analytical Laboratory for product testing IGF 1 LR3 is a powerful growth factor that helps build muscle, burn fat, and speed up recovery. It works by boosting protein synthesis, which helps muscles grow and heal faster. It also