The most I know is not much but it seems to always avoid anything that has glycerin in the ingredients. Also avoid paraben. For sensitive people you should look for hypoallergenic. I hope someone with more experience can offer more information for you.
Based on the ingredients, I'd steer clear of this in general, but especially for someone with sensitivities. Glycerin as a main ingredient and 2 different parabens included. Glycerin is a common cause of yeast infections and other problems in women and parabens are a preservative that are linked to cancers, especially female cancers, and are generally kind of a questionable ingredient. Go with Sliquid organics or Yes.