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Originally Posted by
einstein1905
The first thing you have to consider is that R3 IGF-1 is more "potent" at the doses used than the typical doses of GH used. That's hard to explain, but GH will cause the liver to produce hepatic IGF-1, which is secreted and works at sites/cell types throughout the body, but this IGF-1 is susceptible to being bound by IGF binding proteins and is also quickly degraded. IGF-1 LR3 is not susceptible to binding by IGFBPs and is bioavailable for a much greater duration than hepatic IGF-1. If you shoot R3 subQ throughout a cycle, you are openning yourself up to all the negative effects of IGF-1 and (IMO) not getting the optimal anabolic results you could IM. Having a very bioavailable form of IGF-1 in your system (plasma) for long periods means there is that much greater a possibility of it binding unwanted cell types (epithelia (intestines), organs such as the spleen, and although beneficial in moderation, to tendons). Sorry to those that have read my posting the following before, but there is recent data to show that IGF-1 may not enter or leave muscles well or at all. Most of the benefits of GH on muscles is GH binding to GH receptors on muscle and causing intramuscular expression of IGF-1, not IGF-1 entering the muscle via plasma (No one knows why). Shooting IGF-1 IM means you are introducing a very highly bioavailable form of IGF-1 into a location from which it can't freely leave. Post workout you have an increased expression of IGF receptors in the worked muscles.
Post w/o is the way to go, bilaterally into the muscles worked.....IMO.