For people who already have a cycle behind them
These are the compounds that get added once a first course is done: trenbolone in every ester, nandrolone, boldenone, drostanolone, the strong orals, ready-made blends, injectable Winstrol and growth hormone.
They are far less forgiving than a testosterone-only cycle — dosing, bloodwork and prolactin control all start to matter. If this would be your first course, take the beginner selection instead.