A process for producing particles of at least one polyhydroxyalkanoate (PHA), the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: providing an aqueous suspension of the at least one PHA; and subjecting the aqueous suspension of the at least one PHA to a process of atomization by spray drying. A process for producing particles of at least one PHA, the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: atomizing an aqueous suspension of the at least one PHA by spray drying the aqueous suspension.

Oil-based particles have an average particle size of 0.05 mm to 10 mm, and include: (A) polar oil; and (B) an oily gelling agent having a melting point of 60° C. or more.

Disclosed herein are methods of producing aqueous dispersions comprising insoluble alpha-glucan having at least 50% alpha-1,3 glycosidic linkages. For example, in addition to dispersing insoluble alpha-glucan that has never been dried, methods are disclosed for effectively dispersing insoluble alpha-glucan that has previously been dried. Further disclosed are aqueous dispersions comprising insoluble alpha-glucan, such as those produced by the disclosed methods. Aqueous dispersions of the present disclosure have enhanced features of viscosity, stability, and particle size distribution, for example. Application of aqueous dispersions in various products and uses are also disclosed.

Compositions and methods are disclosed for repairing split ends in hair and/or micro-damage to hair shafts. The compositions comprise a variety of oils, optionally including meadowfoam seed oil (Limnanthes alba seed oil), abyssinian oil (Crambe abyssinica seed oil), and camellia seed oil (Camellia oleifera seed oil). The compositions for repair of split ends and/or micro-damage to hair shafts may be encapsulated in microcapsules. The disclosed compositions and methods can completely repair split ends 3 mm long and under, within one-minute following application.

Silica microcapsules, each of which includes a shell, and a core containing one or more organic compounds inside the shell, a softener composition containing the silica microcapsules, and a method of producing the silica microcapsules is described. In the silica microcapsules, the shell contains silica as a constituent component, and the organic compound contains a primary alcohol.

To provide an oil-in-water type emulsified cosmetic comprising a pigment grade hydrophobically treated particle and a hydrophobically treated microparticle, which is capable of uniformly applying particles subjected to hydrophobization treatment on the surface of the skin and exhibiting a good tone-up effect and the like.

The oil-in-water type emulsified cosmetic of the present disclosure comprises a dispersion medium comprising water, and an oil droplet dispersed in the dispersion medium, wherein the dispersion medium comprises a nonionic surfactant, a polyhydric alcohol, and a pigment grade hydrophobically treated particle having an average particle diameter of 300 nm or more, wherein the oil droplet comprises an oil content , a nonionic surfactant, and a hydrophobically treated microparticle having an average particle diameter of 200 nm or less, and wherein the oil content comprises a volatile oil.

An objective of the invention is to provide a sunscreen cosmetic that increases the ultraviolet protection power of ultraviolet protectants, thereby achieving high ultraviolet protection power using only a small amount of ultraviolet protectants, while simultaneously providing an excellent texture and placing little strain on the skin. The sunscreen cosmetic according to the present invention contains the following components (A) to (C): (A) an ultraviolet protectant; (B) silica having a particle size of 0.3 to 1 .Math.m; and (C) a powder having a particle size of 1 to 30 .Math.m; wherein the (C) powder is of one or more types selected from the group consisting of silica, aluminum starch octenyl succinate, cellulose or derivatives thereof, waxes, mica, sericite and biodegradable resins.

The present invention relates to a hydroxyapatite-supporting porous silica particle, in which hydroxyapatite is supported on a surface a spherical porous silica particle and inner surfaces of pores of the spherical porous silica particle, and in which the hydroxyapatite-supporting porous silica particle has a circularity of 0.760 or larger, a method for producing the hydroxyapatite-supporting porous silica particles, and a composition containing the hydroxyapatite-supporting porous silica particle.

A method for processing a high pigment loaded cosmetic composition may provide a pre-dispersion phase, a grind phase, and a full extender phase. The method of processing the cosmetic composition may fully saturate and disperse solid particulates of at least 35% by weight of the cosmetic composition. The method for processing the cosmetic composition may provide a high color payoff in a single swipe or application. Further, the method for processing the cosmetic composition may reduce feathering and bleeding even with a high pigment load.

Anhydrous cosmetic compositions that provide improved dispersion of pigments and fillers, and solids spreading, as well as providing a matte color or mattifying effect. The anhydrous cosmetic compositions comprise a polyhydroxyalkanoate; a polysiloxane elastomer; and a filler, a pigment, or both.