We Sweeten them only a touch with sustainably harvested stevia from Paraguay, plus the xylitol we use is sourced from non-GMO corn. We generally use vegetable-derived glycerin, and the case of our palm-derived glycerin (sourced in the Philippines and Malaysia), and also the supplier is part in the Roundtable for https://drhsm.com/toms-vs-hello-toothpaste-comparison/