Simple chart.
Note that injection are dependent on a few other factors.
1) Injection muscle size
2) Injection actually properly performed, ergo the niddle long enough that it was a IM injection not a sub-q
3) injection site not getting hammered in the gym right after
and hell a few other thing but I am at work and I really don't wanna use my brain that much so other vets can add to this.
MY bad on explaining the chart:
Numbers on the bottom are the days
numbers on the side are the active amount of tren in your blood stream
So after 9 days on 75mg ED you have 250mg built up