my husbands going to start some igf for the first time tomorrow and ill post up his results as thay progress throughout the days ,if there is any at all ! If he likes it ill run it also . 100mcg for 4 weeks ,he'll take it all at once and will be doing it first thing in the morning ,do site injections mater or can he shoot it anywhere does it have to be in the muscle he is going to work that day ?