@chemwiz, gotta ? , i.m trying to cut weight and stay lean wut about an S4 , Osta and clen cycle! i really want to know is there and advantage to running both or would they cancel each other out? from my own research but uneducated guess is that it seems s4 has more immediate effcts while the osta are slower to take effect but has longer half life and leans u out more. Can somebody pleease help me ?