looking at running Tren,Winny, and clen...told by my trainer that this would be a great cycle for cutting up and remaining very very hard and defined with good muscle gains as well. My concern is gyna? Tren doesn't cause Gyna,but Trenbolone is also a noted progestin: it binds to the receptor of the female sex hormone progesterone (with about 60% of the actual strength progesterone) (17). In sensitive steroid.com members this can lead to bloat and breast growth worse still, trenbolones active metabolite17beta-trenbolone has a binding affinity to the progesterone receptor (PgR) that is actually greater than progesterone itself (18). No need to panic though, the anti-estrogens letrzole or fulvestrant can lower progesterone levels, and combat any progestenic sides. If I run NOLVADEX should I have anything to worry about? What do you guys think of this cycle? How many mg. EOD should I use?