Personally speaking, I used to work for an all natural breast enhancing company. I worked in the backend (I was their systems admin), but I still got to work with some customers. There were a few ladies with uneven breast size and they took those herbal breast enhancers and most of them had a good report that their breasts evened out. Of course some of these products you have to take forever, and some you don't. And.. naturally with any form of herbal or non-herbal medication, you need to consult your physician before taking any of these so you know there won't be complications.
I did research while I was at that job, and here are some links to some products that I thought were pretty good.
PS. Don't let the names of these products fool you. Most of the women who take these products want to increase breast size, not even them out.
http://www.smallbreastsolutions.com/
http://www.p
erfectwoman.net/
The
rest of them are a little iffy in my books.. some of the herbal ingredients are questionable. My first pick would be the SBS one.
Oh.. and as for the company I used to work with.. they went bankrupt. Good thing I left in time. Heh.