I was advised by my doctor that the was no data to support any theory that exogenous administration hgh could cause you body to stop producing its normal levels of gh. (whats normal for the individual) I am not stating this as fact its just what I was told. I tested in order for this Doc to put me on HGH and when I completed the initial therapy of 2iu/day for 6 months, and I went as high as 5 iu/day. I was tested again after about 30 day's and my levels were exactly the same as pre-therapy.
He also said it made no real difference when I administered the dose.