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The ingredients Ginseng root and Gingko Biloba both have antidepressant and relaxant properties, so your mind cools down and you are more relaxed. The other ingredients are the phytoestrogens that are natural estrogen supplements to help in the breast enhancement.
It does have good success rate as claimed by them. I would rather advise you to visit your gynecologist and get a detailed breast examination done to rule out any existing lumps before you start on the pills. A screening mammogram would be better to rule out any possibilities of existing lesions that can be made worse by the estrogen content of the pills. If any abnormality is found, then avoid using the pills.
Take care.