don't use it unless you have gyno symptoms. otherwise, just save it for PCT. if you notice any itchiness or puffiness, or even a hard lump forming behind your nipple, start nolva at 60mgs ed til it subsides, then run it at 10-20mgs for the remainder of the cycle to keep it away. some get it, some don't. won't know til you find out for yourself. either way, don't use it unless you have to. JMO.