Provided herein are magnetically-responsive, photosensitizer based antimicrobial microemulsions and photodynamic nanoplatforms in which a photosensitizer functionally associated with a plurality of superparamagnetic iron oxide nanoparticles are encapsulated. Also provided are methods and processes utilizing the antimicrobial microemulsions and photodynamic nanoplatforms to treat an oral disease, to reduce a microbial population in a pathogenic oral biofilm and to improve the efficacy of a photosensitizer during an antimicrobial photodynamic therapy treatment of an oral disease.

The present application is directed to antimicrobial compositions comprising chitosan polymers of at least two different average molecular weights (Mws), wherein the Mw of each different chitosan polymer is selected to target a different microorganism as well as method of making and using the compositions and product comprising the compositions.

A composition for reducing microbial activity in an environment susceptible to microbial activity, comprising: metallic nanoparticles; and an oxygenation agent.

A topical cleansing composition for stimulating the production of antimicrobial peptides on the skin is disclosed. The topical cleansing composition includes an active ingredient comprising one or more of a natural extract and a polypeptide; one or more surfactants; and water. The topical cleansing composition increases the concentration of antimicrobial peptides on skin, as compared to an otherwise identical topical composition without the active ingredient.

Disclosed herein are methods for removing spores from skin, the method including dispensing an effective amount of a composition into or onto an article, wherein the composition includes water and from about 0.04 wt % to about 4 wt % polymeric cationic antimicrobial, nonionic antimicrobial or combinations thereof; contacting a skin surface with the composition; mechanically acting on the skin surface for at least one (1) second while the skin surface is in the presence of the composition; and removing at least a portion of the composition from the surface of the skin, wherein removing the composition also removes spores from the skin surface.

A non-antimicrobial cleansing composition is disclosed comprising from about 10.0 wt. % to less than about 40 wt. % of one or more C.sub.1-C.sub.8 alcohols; about 0.5 wt. % to about 10.0 wt. % of at least one primary surfactant; 0 wt. % to about 10.0 wt. % of at least one secondary surfactant, with the primary and secondary surfactants having an HLB value greater than 8; a pH adjusting agent; and water. The composition does not achieve a microbial kill level greater than 2.0 log.

Kits and composition comprising: (i) a thermo-responsive hydrogel characterized by a viscosity suitable for hardening after administration on a subject's skin; (ii) a bacterial growth medium; and optionally, (iii) a population of non-pathogenic viable bacteria, are provided. Methods for topically delivering a therapeutic or cosmeceutical agent such as for inhibiting or reducing growth of microorganisms on a subject's skin are further provided.

Antimicrobial or non-antimicrobial compositions, sanitizing compositions and other compositions combining use of a propoxylated EO/PO block copolymer surfactant and/or propoxylated polymer in combination with at least one additional anionic and/or nonionic surfactant to provide concentrated compositions having a desired viscoelasticity at an active level of at least 18% are disclosed. Non-antimicrobial applications combining use of a propoxylated surfactant and/or propoxylated polymer in combination with at least one additional anionic and/or nonionic surfactant to provide compositions having a desired viscoelasticity are also disclosed. Methods of using concentrated and use compositions having desired foaming enhancement and stabilization are also disclosed.

A cleansing composition comprising a sulfate surfactant; a fatty acid soap; a silver compound; a thickening agent; and a nitrate. A pH of the cleansing composition is 5 to 10. Another cleansing composition comprising a sulfate surfactant; a silver compound; a thickening agent; a nitrate; and a preservative. A pH of this cleansing composition is 4 to 5.5.

The present invention is intended to provide a lactic acid bacterium-containing composition that is effective for suppression of the onset of allergies. More specifically, the present invention relates to a composition comprising lactic acid bacteria belonging to Lactobacillus animalis, wherein the composition is provided in the form of, for example, a food or beverage composition, a pharmaceutical composition, a feed composition, a sanitary composition or the like. Furthermore, the present invention provides a method for preventing the onset of allergies.