Test E 300/400 differences

[Far from massive]

PAIN! the higher the mg the more pain you will usually have.

This ^^^^ there is no reason for test concentrations this high, its a marketing ploy for the kids who think more has to be better.

PS if you wanna do more test, then inject 2 mls of Test at 250 mg per ml this will give you more test than 1mg of test 400 and cause a lot less pain.