The IGF you want is the LR-3 variation it is the one with the longest half life. Not to be an ass but what steroid available is not dangerous if used incorrectly? IGF can be used while on or off AAS, or a combination on/off. Such as and enhancer while on used 4 weeks on and 2 weeks off. It is also commonly used as PCT due to its ability to hold/retain gains as a result of being on AAS. The sides are mostly caused from excessive use by professionals demanding more than can or should be realistically. I ask anyone to show me a pic of someone who is like you or I that wants to look great, not a professional that has GH gut? No one to this day has been able to provide one example. Good luck!