I am starting a cycle with IGF and would like experienced realistic responses as to different methods of use. The the company tells me that the 1/2 life of the GH is 2 to 3 hrs. and the 1/2 life of the IGF is 13 to 15 hours. Is there a feed back inhibition of liver production of IGF from GH. Will the elevated IGF level from the injection decrease the liver's ability to produce IGF from GH. I am interested in number of injections a day. The time of the injections. Should they be taken together?

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