I can not find a exact answer. Does supplementing HGH (in whatever amount) shut down the bodies natural HGH production as with Test. So if we make between .5 and 1.5 IU of GH naturally a day and we supp. 4iu does this mean we are getting about 5 IU a day combined. And I guess the next question is once we stop taking HGH will future natural production be hindered at all.
thanks guys