yes, once ED, and mix it with any oil based AAS if possible. u can use it with anything u would normally use test with. if u don't mind the ED shots over a longer period then u use it as the only test. if u do mind that then u can start ur cycle with longer ester test and switch later to susp. u can also kickstart gains with it in the same way u'd frontload with dbol. it is just test so u have to take that into account when deciding ur weekly test dosage.