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 Explanation, Benefits, and Dosing for IGF LR3 Wittmer Rejuvenation Clinic 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 What is IGF 1LR3? PEN PEPTIDE