My personal opinion is that you should pass on the IGF-1. I purchased some. You get 1ml of liquid. From that you have to break it up into 20-30 shots.
My vial was underdosed. I did about 4 different shots. SubQ caused the area to be sore for weeks. Couldn't see doing that every day. IM caused some pain. Got tired of the hassle and threw it away.
The problem I have is that you really can't tell what you've got. To have it tested is extremely expensive.
My advice would be to purchase HGH and use it instead. Easier to use and you know what you are getting.
I think that IGF-1LR has potential but I currently don't trust it.
I have read very few glowing reports of IGF-1.