I could not find any Soy milk that was thickener-free and starch is the most common (creamy) thickener. I gave up and used lots of coconut milk which is labelled well here and can be found without thickeners. Coconut milk/cream is mainly fats and can kill candida.
YUM
I love it. Good for savory or sweet uses.
Cream(lightly or non diluted) is better than milk as it is less likely to be thickened. Ayam brand.