Disclosed is a whitening composition including a mixture of zinc oxide and of boron nitride and, if appropriate, a whitening agent selected from kaolin optionally calcined, cerium oxide, a citrate salt, mica and a mixture thereof. The whitening composition is useful for imparting opacifying, whitening and/or covering properties to a cosmetic formulation, as a replacement for titanium dioxide.

Compositions, devices, and methods related to determining adequacy of the application of a sunscreen composition on human skin are disclosed. A disclosed sunscreen composition includes a sunscreen agent and a fluorescent agent, which, when excited by an ultraviolet light having a compatible wavelength, fluoresces in visible light. A method for determining whether the sunscreen composition has adequately applied on human skin is disclosed. A disclosed device generates an ultraviolet light having a compatible wavelength and is portable.

Components, for example, nanoparticles for detecting and/or treating one or more active carious lesions or microcavities in teeth of a subject are provided. The component or nanoparticle may comprise a biocompatible and biodegradable polymer (e.g., a starch) bearing at least one cationic region and/or having a net positive charge and thereby capable of associating with one or more active and/or early carious lesions on a tooth in an oral cavity of a subject. The components or nanoparticles are optionally water soluble or dispersible. The components or nanoparticle also comprises an imaging agent (e.g., a fluorophore or dye) bonded to the biocompatible and biodegradable polymer. The component or nanoparticle is thus capable of indicating the presence of one or more active carious lesions when the component or nanoparticle is associated therewith. Oral care compositions comprising such compounds/nanoparticles and methods of making and using the same are also provided.

The present disclosure provides biophotonic compositions and methods useful in phototherapy. In particular, the biophotonic compositions of the present disclosure comprise at least two xanthene dyes. The biophotonic compositions and method of the disclosure are useful for promoting wound healing and skin rejuvenation, as well as treating acne and other skin conditions.

Formulation for colouring hair having at least one coloured polymer.

Embodiments of the present disclosure describe a negative photochromatic material. Embodiments of the present disclosure further describe a method of tuning a negative photochromatic material comprising selecting an amine donor group, selecting an acceptor group, and contacting at least the selected amine donor group and the selected acceptor group to form a negative photochromatic material, wherein one or more of the selected amine donor group and the selected acceptor group tune at least an absorption range of the negative photochromatic material.

A soap for hand washing is provided that contains a material that fluoresces when exposed to light such as ultra violet light, the hands are subjected to the light after washing and any fluorescence can indicate inadequate washing, the soap can be used to determine if World Health Organisation guidelines for washing have been adhered to.

A cosmetic composition that fluoresces when irradiated with electromagnetic energy is disclosed. The cosmetic composition may comprise a cosmetically accept medium comprising at least one inorganic compound, wherein the inorganic compound is doped with an inorganic fluorescence activator to cause the composition to emit a fluorescent response when irradiated with light, such as UV light. Related products that include such a composition are also disclosed, including a lip stick, an eyeliner, foundation, blush, body paint, a hair gel, or nail polish. There is also a method for imparting a fluorescent response to at least once keratinous surface of a person that comprises applying to the keratinous surface an effective amount of the composition described herein.

The present disclosure provides topical biophotonic materials and methods useful in phototherapy. In particular, the topical biophotonic materials of the present disclosure include a cohesive matrix, and at least one chromophore which can absorb and emit light from within the topical biophotonic material, wherein the topical biophotonic material is elastic. The topical bio-photonic materials and the methods of the present disclosure are useful for promoting wound healing and skin rejuvenation, as well as treating acne and various other skin disorders.

A photosensitive microcapsule having a shell encapsulating a core material. The core material can comprise a benefit agent and the shell can comprise a photosensitive polymer. The photosensitive polymer can include one or more photosensitive moieties having a substituted amine and a 1,3 dione moiety. The core material can be released from the photosensitive microcapsule upon exposure to an electromagnetic radiation field selected from the group consisting of infrared radiation, visible light, ultraviolet radiation and mixtures thereof.