Those are my thoughts exactly, i doubt a fragment would have the same exact pharmacokinetic profile as pharma HGH. ( Going by the data/charts/graphs in the studies ) but i feel it would be more likely to pop as HGH in a test. That's why a good GH serum results give me confidence, and as a preliminary test, it can't be beat.
There is very little change in serum IGF-1 levels immediately after injection. It takes 4 weeks of HGH injections for IGF-1 levels to reach close to as high as they will get on that particular kit and dose of HGH.
4 weeks is the ideal time to test IGF-1, i like to wait 6 weeks if i've already been taking HGH because the IGF-1 increase can last a few weeks even after you discontinue the HGH. The GH serum test is awesome because you don't have to wait at all, and can test it as soon as you get it and have results within 1-3 days.
On my growth thread I started pulling week 2 and every week after that for 12 weeks straight
I did notice on 5iu pinned morning my highest was week 2 then leveled out week 4 so I agree on the 4 week mark for sure. After week 6 I started 2.5 am 2.5 pm and noticed a considerably higher igf number through the coarse of 6 weeks with the highest at 707.
Have you ever tested Pinning IM daily and tested igf? I know the absorption will be faster but I have never seen testing on this in our world.