Use it if you need it. you will no if you need it if you notice any signs of gyno. If you use aromatizing
aas and you are prone to that problem then use 20mg ed or arimadex 0.5mg eod. I don't have much of a problem with estrogenic sides even when using large amounts of aromatizing
aas but some guys do. the thing is that if you deveolp gyno your sol.