About product and suppliers:
            374 soy isoflavone products are offered for sale by suppliers on Alibaba.com, of which herbal extract accounts for 13%, other extracts accounts for 6%. 

A wide variety of soy isoflavone options are available to you, such as seed, leaf. You can also choose from solvent extraction soy isoflavone, as well as from bottle, drum soy isoflavone, and whether soy isoflavone is powder. 

There are 131 suppliers who sells soy isoflavone on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of soy isoflavone supply is 100% respectively.