its not a set value for everyone, some people dont need it, some people can use .25mg, some .5, some 1 or 2, whatever. if your scared and wanna be sure, use 1.5 or 2, if your not that worried or prone to it use .5-1, start low @ like .5, if you notice anything or get worried bump it up to 1, etc...the stuff isn't cheap well it isn't for me at least, so i wouldn't waste more than i dont need, so use in moderation, personally i used 35mg ed and had no symptoms of gyno, along with deca300 and sust500,good luck
dj