axio labs makes a good masteron 200.It is definately strong.will harden you up for sure.I ran it with tren and winny pre contest.Did make my mood swings a bit intense,however not sure what exactly was doing it,the diet,tren,mast,win,halos,or all of the above.Ran it with hgh and prop off season and loved it.Bodyfat %was around 10% and felt "jacked all the time"hard as a rock.pm me if you need more info.