Brother, bodybuilders dont USE steroids. They are abusing them

Ask any doc and he will confirm it

thats why some of us take 250mg of Test En per week and others take 3000mg per week or more.
So you can inject 1amp per week or 1amp per month, it depends on your goals, stats and experience with the gear. Its long acting testosterone which stays active in your bloodstream alot longer than any other esther
And no you cant use 1ml at a time. One amp contains 4ml of Test Undecanoate. What are you going to do with other 3ml then? You have to inject 4ml at a time. Frequency of injections depends on your goals, stats, etc..