Winny wont effect his cardio and if thats the only reason for taking it I wouldn't introduce it. Masteron wont help his cardio either infact masteron will aid hardness and condition but with winny you will get some lean gains.
Masteron is a great addition to many stacks and will give a granite apprearance and hardness like no other but as far as producing gains in lean tissue its limited, were winny will produce lean dry gains.
Masteron is a great addition to many stacks and will give a granite apprearance and hardness like no other but as far as producing gains in lean tissue its limited, were winny will produce lean dry gains.