It usually comes in 1mg or 5mg vials. NEVER buy the premixed version as it's bullshit! As soon as it's mixed, IGF-1 has to be frozen.
If you have the protein binding solution (VERY hard to get) mix it in the vial and you can just inject once a day. If you just have normal injection water, you have to divide your daily dose into 4 and have 4 separate injections every day.
It's hard to describe. Let's just say that gear makes you big, but still keeps you looking like 2D. GH increases your quality of the muscles. But you still look like 2D. IGF-1 makes you look 3D... everything posps out, you are starting to look like a cartoon.
20mcg is not enough. I believe that the studies were indicating that one should use 0.8mcg per kg of bodyweight. So a 100kg (220lb) bodybuilder should use 80mcg/day. Since each vial is 1mg, then it will last 10 days at 100mcg/day.
I have no experience with IGF, but it is interesting. How long do you retain the 3D look? Just while on? At $250 per 250mcg, at 50mcg twice a day, that sounds SUPER expensive. Perhaps this is a pre-contest drug? I have heard people talk about IGF, and most say they don't see any significant results from it. There's a good chance that they don't know how to use it right, though, so don't take my (or their) word for it.
So, honestly is the 'permanent' end result worth adding IGF to a cycle?
Well, Animal and his buddies appear to reconstitute the hormone in 1ml of benzyl alcohol and just keep it in the fridge without harming the AA Chain. Draw out 10iu's for 100mcg or 5iu's for 50mcg, then draw some sterile water into the syringe and inject it.
I remember a few years back getting 2mg, mixxed it with 10cc benzyl alcohol and 2cc sterile water and freezing 40 pins with 50mcg each. Paid about $700 for those 2mg too. Wasn't worth 700 big ones, but for $250/mg I'm really tempted to use it again. Did 50mcg a day for 20 days then went off until the next month started. Used it 2 months total. Gave a better quality to my physique, like everything "poped". I did about 50/50 subq/intramuscular injections. It's been 2 years since I've seen anybody who still carried it, go figure.