Ok well Below is the reasoning and this was found on another site as I can't find our thread on it which I think is even more elaborate than the info below but it's basically the same information, and again we've had a few guys come on here and rave how happy they were that their igf levels on blood test were so high and like I said earlier , I'd love to say "of course it's from our igf " but the blood test isn't an indicator of anything when it comes to whether ur igf-1 lr3 is real or dosed right. Anyhow below is the reasoning and again you can find a great post on it in this forum if you search hard enough ,
you cannot gauge exogenous igf1 levels due to the fact that the blood work only shows bound igf1. The idea behind LR3 is keeping it unbound so it goes systematic. So the test you had was not an indicator if your actual IGF-1 LR3 levels in the blood.
IGF-1 blood tests look only for bound IGF-1 while the purpose of IGF-1 LR3 is to keep it unbound and therefore bioavailable meaning it will not show up on conventional blood tests. It is the same scenario as for blood tests which examine testosterone levels. Many people can have results showing low or normal testosterone levels, but have high ***8220;free testosterone***8221; levels ***8211; which is much more important, since only testosterone which is not bound to SHBG (sex hormone binding globulin) can be used by the body.
Therefore your levels of IGF-1 on a blood test are not of much importance and do not take into account the increase from IGF-1 LR3 usage, as they only look at bound IGF-1 (which cannot be used by the body since it***8217;s attached to binding proteins).