Yes and No......
Yes, you DO get more "localized" growth (at least my 3 cycles have proven this in my research subject)........but
No, it does circulate throughout your body for more general effects as well.
Regular IGF (not Long R version) is almost 100% site specific, but as we know from doing a "search" function it is also not very effective in comparison to the LR3IGF-1 version.