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 Best time to take growth hormone? , Most athletes use it on an empty stomach, with the most common timing about an hour before bed., Consistency and timing make the difference., Watch the full IGF 1: Miracle Hormone or Health Hazard? Diet vs Disease Explanation, Benefits, and Dosing for IGF LR3 Wittmer Rejuvenation Clinic IGF 1: Miracle Hormone or Health Hazard? Diet vs Disease