There have been some decent reports with the igf-a r3long version but you need to figure out how to make it injectable and an easy way to dose it since dosing is in micrograms and its generally sold in powder form. It appears that our body compensates for the exogenous addition of IGF-1 r3long after about 4-6 weeks where its benefits greatly diminush. Also keep in mind that studies have shown elevated IGF-1 levels can cause gyno as well.