I was just going to throw in some personal experience, I have used the brown tops(hygetropin), the blue tops(keifei), jintropin and norditropin by novo nordisk. So I figured I could give a little feedback. Jintropin seemed ok, I didn't get any sides other than edema, but seemed to work well. The norditropin was also pretty much free of sides and caused edema, it worked well. THe browns and the blues seem to work better in my opinion, the blues give me nasty sides, headache, carpal tunnel and water retention the like. I have controlled the water retention quite well with 500 mcg of cabergoline a week, seems to work wonders. I didn't get many sides with the brown tops, other than swelling, so I prefer the browns, but they are really hard to get a hold of, so I stick with the blues for now.