i think there are 2 ways to know whether sus is fake or not.
this works for the first and 2nd injections.
if u inject the sus in ur quad alone (inject the sus alone for first time), and if u cant get out of bed the next day, or walk, you know its real. when i first injected sus in my ass, i couldnt sit still for a week, and when i did it in my leg, i had to take the elevator to go up 1 floor rather than the stair case.
there is also the freezer test, where the sus turns cloudy and the testosterone separates from the oil, but it isnt 100% reliable.
good luck! oh and flame away !