Disclosed are an anti-pollution cosmetic material and a method for preparing the same, wherein the anti-pollution cosmetic material contains a material having ultraviolet-blocking properties or heavy metal adsorption capacity or an organic-inorganic hybrid material having both ultraviolet-blocking properties and heavy metal adsorption capacity, so that the use of the inventive titanium dioxide (TiO.sub.2) composite particles and heteroatomic polymer-attached polyamino acid polymer can provide not only an ultraviolet-blocking or anti-pollution cosmetic composition but also a cosmetic composition having both an ultraviolet-blocking effect and an anti-pollution effect, and such a material can mitigate the white cast and the harmfulness of a microparticle powder, which are problems of existing inorganic sunblocks, and can be utilized as an anti-pollution material for skin protection having heavy metal adsorption capacity.

Microparticles comprising carboxylated, sulfated, or phosphated cellulose nanocrystals (CNCs) and pigment nanoparticles are provided. In these particles, the cellulose nanocrystals and the pigment nanoparticles are agglomerated together thereby forming said microparticle, and wherein the pigment nanoparticles are bound to the surface of the cellulose nanocrystals. Cosmetic preparations comprising these microparticles are also provided. Finally, a method for producing the microparticles is provided. The method comprises the steps of a) producing an aqueous suspension of carboxylated, sulfated, or phosphated CNCs with pigment nanoparticles bound thereto; and b) drying said aqueous suspension to produce the microparticles.

The present invention relates to a fast disintegrating granular hair cleansing composition in which a wet granulation process, which is a pharmaceutical preparation method, is introduced into a method for preparing a cleanser. The fast disintegrating granular hair cleansing composition is prepared by a wet granulation process so as to be readily disintegrated into granules by using small force, because of a low hardness thereof, and can easily form creamy foam since a large surface area comes into contact with water. In addition, portability, convenience of use and sanitation can be improved when molding is carried out in a single-dose in which the entire amount is used at one time.

Sunscreen additives for enhancing vitamin D production are provided herein. A method includes selecting phosphor materials to incorporate into zinc oxide particles, wherein the phosphor materials are capable of carrying out an up-conversion process whereby two or more photons absorbed by the zinc oxide particles and/or the phosphor materials within a first wavelength range are emitted as at least one photon within a second wavelength range. The method also includes incorporating the selected phosphor materials into the zinc oxide particles. A composition includes zinc oxide particles suspended within a medium of a sunscreen composition, and phosphor materials incorporated into the zinc oxide particles, wherein the phosphor materials are capable of carrying out an up-conversion process whereby two or more photons absorbed by the zinc oxide particles and/or the phosphor materials within a first wavelength range are emitted as at least one photon within a second wavelength range.

Disclosed are a dry mixture and a personal care composition, each comprising a fibrous material of natural origin and obtained from plants. The fibrous material comprises micro-scaled and/or nano-scaled fibril agglomerates. Such compositions show pleasant skin feel and comfort during and after application, as well as fast drying and fast absorption into skin. The compositions obtained are also particularly well suited for the topical delivery of cosmetic and pharmaceutical active substances into skin. Additionally, methods to obtain said dry mixture and said personal care composition are disclosed.

A personal care composition for hair and skin applications includes an aqueous solution consisting essentially of aggregates of behentrimonium chloride and dihydroxypropyl PEG-5 linoleammonium chloride. The composition forms micro particles or aggregates of behentrimonium chloride that exhibits surprising distributive properties in aqueous solution of a nature beneficial to its application to hair or skin surfaces.

The present invention relates to a system for administering a poorly-soluble compound to the skin, the system being capable of exerting an excellent effect by stably impregnating the poorly-soluble compound and effectively delivering the poorly-soluble compound into the skin, and the present invention is technically characterized by a microneedle to which microparticles comprising a poorly-soluble compound are added. In addition, the present invention provides a method for administering a poorly-soluble compound to the skin, the method being characterized by using the microneedle.

The present invention relates to [1] a detergent composition including pigment granules containing (A) from 10 to 95% by mass of a water-insoluble pigment, and (B) at least two compounds selected from the group consisting of polyvinyl alcohol, a polyvinyl alcohol derivative, polyvinyl pyrrolidone and a polyvinyl pyrrolidone derivative; and [2] a process for producing the detergent composition according to the above [1], including the steps of mixing and granulating a powder containing the water-insoluble pigment (A) and a solution of the component (B) to obtain a granulated product; drying the resulting granulated product to obtain the pigment granules; and mixing the pigment granules with a detergent. The detergent composition is capable of not only can satisfying both of rich foaming and good preparation stability, but also exhibiting sufficient coloration of foams and readily controlling a coloring time of the foams without damage to motivation of the user to use the detergent, and therefore can provide a comfortable feeling of use and a suitable configuration of use according to the applications by the user.

The invention provides a personal care product or a home care product having self-assembled microparticles having an acid having two or more acid groups and an organic base in a solvent. The microparticles may form into a macrostructure and provide a support for carrying components of a personal care or home care composition. The particle is of micron scale. The microparticle may be obtained by contacting a bis-acid and organic base in a hydrophilic solvent, wherein the acid is insoluble or sparingly soluble in the hydrophilic solvent and the organic base is soluble in a hydrophilic solvent.

This invention is related to a method for producing polymer latex particle coated with silver nanoparticles. First, a polymer latex particle suspension is mixed with a silver nitrate solution in a weight ratio of 10:1 to 1:10 at 50 C. to 90 C. for 10 to 120 minutes to form a mixed solution. After the temperature of the mix solution is cooled to 50 C. to 85 C., a sodium citrate solution is added to react with the mixed solution for 10 to 240 minutes to form a polymer latex particle coated with silver nanoparticles, which has antibacterial activity.