Is there an all natural, legal aromatase inhibitor?

http://www.store.yahoo.com/joelsward/estroblock.html

:scratch: ¿what do you think about?

there is this stuff called chrysin, its alot cheaper than the stuff your lookin at, for that price you should just get some nolvadex

Not all natural from a plant source but look into ATD products rebound XT and Ultra hotter completley legal

The product you linked to has 3,6,17-androstenetrione AKA 6-OXO, which is a suicide aromatase inhibitor. It binds to the aromatase enzyme but can't be removed, rendering the enzyme useless. I believe Ergopharm copyrighted the name 6-oxo, so others can't use it. It also has chrysin. Sounds like an effective product, although you may be able to buy the active ingredients cheaper separately.