Ooops! I accidently hit send while I was making my first draft in response to your post. Wait, there's more!
I see that you are from Australia. You may want to mention that when asking these types of questions.
You may want to put that in the title of your posts because the same products are not equally as available on all continents.
Many of us are from the USA and UK.
I have no idea what products are available in Australia.
Many of the products use similar ingredients or combinations of ingredients; PM, Fenugreek, Fennel, etc.
You only need one good phyto-estrogen and it sounds like the one that you have is working for you.
However, out of curiosity, what is the name of the product (we like to keep tabs on such things)?
What is your dose and frequency, and how long have you been using this product?
If it is working for you, why do you want to change it?
If you are not taking an anti-androgen, it would probably be a good idea to start (most likely).
If you don't know about AA's, then you need to do more reading on the forum.
AA's suppress your male testosterone to allow the phyto-estrogen to dominate.
Later, after breast budding, you will want to add progesterone cream to your regimen.
You do not need more than these three things to grow your boobs.
You can use a butt cream that contains Volufiline to help with that. [Glute Boost] or check ingredient of others.
Try to get recommendations for Brand Name, effective products. There are just too many fakes out there. Do not waste your money.
Karen