Brigitte,
Welcome.
I would recommend you start looking into the difference between estriol, estrone and estradiol, the three forms of estrogen normally found in natal females. (Try
http://en.wikipedia.org/wiki/Estrogen to start with.) Estradiol is some 80X more potent than estriol, which is the weakest of the three. This is one reason why you can buy 'natural' estriol cream OTC; it has very weak estrogenic effects. Also, realize that they are calling it 'natural' since it is synthesized from either soy or wild yam, but it does NOT naturally occur in any plant that I have heard about.
I would also recommend reading what other members who have achieved enviable growth are doing, and follow their lead. I suspect you will be hard pressed to find any of them using estriol cream as a major part of their program.
In my opinion, to achieve breast enlargement we have two options: use bioidentical estradiol (some would argue that would not be NATURAL breast enlargement since it entails taking pharmaceutical grade hormones), or the strongest phytoestrogens we can find. Our task is pretty different than our natal sisters pursuing NBE in that we are essentially trying to stimulate the initial part of female puberty in which the breasts begin to develop and grow. Therefore, we want to use phytoestrogens that mimic the effects of estradiol as closely as possible. You will find a number of herbs and supplements that fit that bill, as well as others that many (including me) think are largely a waste of time and money. You need to do some searching on your own to figure that out. I know others have used massage and vacuum to great effect, but to my way of thinking, those are adjunctive methods at best.
In any event, welcome and enjoy the journey--"what a long strange trip it's been!"
