Sodium Dextran Sulfate Bon Agent suspenseur/dispersant No known benefits Sodium Dextran Sulfate at a glance Suspending agent Ruled safe as used in makeup and skin care Maximum usage concentration is 0.5% in leave-on products White powder in its raw form Sodium Dextran Sulfate description Sodium dextran sulfate is a suspending agent used in cosmetics formulations. In its raw form, it is a water-soluble white powder. The independent Cosmetic Ingredient Review panel has ruled sodium dextran sulfate safe as used in makeup and skin care. It is used in concentrations up to 0.5% in leave-on cosmetics.