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The current understanding regarding plant estrogen is
that it may work by interfering with the body's own estrogen,
preventing it from being out of balance. If the body has
too much estrogen, the plant estrogen may prevent the
body from utilizing it (thereby preventing estrogen-related
cancers); if the body has too little estrogen, it might
make the body think it has more, reducing some of menopausal
side effects.
But what about estrogen creams? There is no research
showing that plant estrogens provide any benefit when
topically applied to skin. But even if there were benefits,
how much do you need to rub on your skin to obtain them?
More to the point, because the cosmetics and natural-supplement
industries are not regulated, there is no way to really
know what and how much you are putting on your skin. Until
there is, leaving your health up to guesswork and marketing
schemes is not a wise direction to choose.
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