Materials and apparatus are provided that exhibit increased efficacy. The apparatus includes an antiperspirant composition with a mineral clay emulsifier. The antiperspirant composition includes a water-in-oil emulsion. The water-in-oil emulsion includes a water-phase component that includes an active antiperspirant ingredient and a carrier ingredient. The water-in-oil emulsion also includes an oil-phase component that includes a mineral clay emulsifier to stabilize the water-phase component and the oil-phase component.
