“Adding xanthan gum also increased overall permeation of DEET and oxybenzone (21% and 150%) when compared to Formulation A; presence of both ingredients in Formulation B further increased their permeation (36% and 23%) in comparison to its single counterparts.”
“Formulation B (oil-in-water emulsion with thickening agent xanthan gum ) significantly decreased the size of oil droplet containing DEET (16%), but no effect on oil droplets containing oxybenzone.”