growingman's picture
growingman
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hgh active life.

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what is the active life of hgh-igf-1. how long does igf-1 stay active in the blood after an injection?

review2013's picture

HGH levels apparently peak after 4 hours then decline back to pre injection levels after about 11 hours. It is not an even rise and fall, it goes up strong and fast till the peak at 4hrs then drops off in a more steady way till the 11 hour mark.
There is lots of conflicting info about tho if you Google it.