Clay delivery systems for providing antimicrobial compositions are provided. The delivery systems include a two-part active excipient system that delivers clay for various applications of use, including topical applications. The two-part delivery system can include a first part comprising suspending agent(s), poloxamer and optionally a gellant, and a second part that is simultaneously delivered therewith comprising one or more nonionic EO-PO block copolymers in a water-based system. The delivery systems beneficially provide clays in a stable system that also unexpectedly accelerate the release of the clay into the water system for activation and delivery that is enhanced by the poloxamers into the tissue or organ of the body in need of treatment thereof.