Effervescent compositions are disclosed. The effervescent composition may include at least one compound capable of effervescence in the presence of a liquid, such as water. The effervescent composition may also include a non-hygroscopic solvent. The presence of the non-hygroscopic solvent may assist the effervescent composition in substantially avoiding effervescence until the composition contacts a liquid. Optionally, the ratio of the at least one compound capable of effervescence to the non-hygroscopic solvent is not less than 9:1.
A foaming cleansing preparation and system that produce a high quality, self-sustaining foam immediately upon exposure to water without physical agitation or rubbing is provided. The inventive cleansing preparation is made up of at least one dry acid, at least one dry base, and at least one liquid film-forming cleansing agent. When the cleansing preparation is exposed to water, the acid(s) and the base(s) will react to form a gas and the cleansing agent(s) will form a liquid film, and the gas and the liquid film will then interact to form or generate a foam. The inventive cleansing system is made up of a plurality of delivery particles, with each such delivery particle containing one or more components of the inventive cleansing preparation.
