Hello, I have been using HGH 5IU (every day) from QSC for 3 weeks. I had blood work done 2 days ago (HGH serum test) and the results were very good. Protocol: got up at 6:00, 10 IU in muscle (forearm) and blood taken at 9:30. I was even late but the result looks good. I want to be sure and test my IGF1. how should I do this best? I heard that IGF1 takes months to increase? is that true? Thanks to all