I've used Dynasty blue tops at 10iu/day for 3 months. They're incredible!!! I saw my body change everyday. Unfortunately, I just had 300iu seized. I'm not will to risk seizure again at this time. Gonna try Riptropin. It's $1.85iu for domestic shipping and is supposedly pharmaceutical grade. Well worth the extra money to avoid dealing with customs! IGF1LR3 worked real well the first time I used it. Not the other couple times. Next go around, I'm gonna try the Gavin Kane Blast Protocol 20iu/hgh, 30mcg/IGF1LR3, and 10units insulin, all post workout 3x/week. Supposed to be best for mass building. It's worth a try. 10iu everyday worked wonders, but I wanna see if there's anything to 3x/week protocol allowing receptors too clear, leading to less down regulation. After 3 straight months of 10iu, my blood sugar seems abnormally high. It actually has put 10 pounds on my body in the past 10 days and I'm still very lean(7%). Pumps are better now than on HGH and slin.