Mast is supposed to be Added near the End of a Cutting Cycle to Finish the Physique.
You are supposed to add it in when you're Already at Single Digit BF%.
This is When the Masteron will Shine, Cutting that last little Bit of Stubborn Fat.
It will also give a Much Harder and Dryer Appearance to your Muscle...................................... JP
P.S.
If you're Over 10% BF ~ save the Mast for when you get to Single Digits.
Too many Guys just Toss it in there when it shouldn't be Included.