The present invention provides a stable, relatively low concentration of an aqueous fabric softening composition having a viscosity of from about 30 cps to about 2000 cps. The composition has a pH such that it is microbial stable and of commercially acceptable viscosity. This invention is predicated on the discovery that the use of weak acids such as lactic or citric to reduce the pH of the composition not only gives appropriate microbial efficacy but does not adversely affect the use of viscosity enhancing agents and the viscosity of the finished product is easily controlled.