IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society LONG R IGF I 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 and Penis Enlargement: What the Evidence Actually Shows Application and benefits of IGF 1 LR3_Chemicalbook