mostly cosmetic... makes you hard as hell... and brings out some vascularity... i may have made me a little stronger while dieting but that is questionable... most say not worth it if not down to 10%bf or less... i would say that is pretty accurate...
...but if youre bf is low it does make you look great... i used it at 350mg/wk... 100mg shot eod with my prop...
Some Estrogen suppression as well (A. Roberts had a good write-up on Mast. but I can't find it) - nice addition for the last 5 weeks of that freakin monster cycle you posted earlier!! Be sure to post your experience!
...damn AMGETR, you must handle sides well! Love the Var/Tren combo... would love to hear what the Tren/Masteron/Var/Clen/Test P does for you. You gonna run BD Mast?