Frontiers Morning vs. evening growth hormone injections and their impact on sleep wake patterns and daytime alertness Recombinant Human LR3 IGF I IGF 1 GMP Protein, CF 8335D GMP: R&D Systems 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 LR3 Dosage Protocol: Safety Guide PeptidesExplorer