Antimicrobial compositions and related methods are described. In an embodiment of the invention, an antimicrobial composition comprises parachlorometaxylenol in an amount of 0.75% w/w to 1% w/w; sodium pareth C12-15 sulfonate in an amount of 1% w/w to 1.25% w/w; poly(oxyethylene)20 cetyl ether in an amount of 0.05% w/w to 0.55% w/w; benzoic acid in an amount of 0.075% w/w to 1.25% w/w; glycerol in an amount of 0.01% w/w to 0.02% w/w; phenoxyethanol in an amount of 0.001% w/w to 0.5% w/w; and water in an amount of 94% w/w to 97% w/w.