The present invention relates to an antimicrobial topical composition and process for making such composition. The composition comprises of ionic silver, silver nanoparticles, and oxygen, combined within a gel medium and applied topically. The composition optimizes the ionic silver and silver nanoparticle ratio providing for sufficient ionic silver to be delivered as an immediate antimicrobial agent, and sufficient nanoparticle silver to provide time release for conversion to silver ions for continuing antimicrobial effectiveness.