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.

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.

An objective of the invention is to increase the ultraviolet protection power of an ultraviolet scattering agent, thereby providing an oil-in-water emulsion sunscreen cosmetic that can achieve high ultraviolet protection power and that has excellent emulsion stability. The sunscreen cosmetic according to the present invention comprises (A) an acrylic copolymer having phosphoric acid groups; (B) a hydrophobically treated ultraviolet scattering agent; and (C) 0.3% by mass or more of a water phase thickener; wherein the ultraviolet scattering agent is dispersed in an oil phase.

The present invention relates to a composition comprising: (a) at least one cationic polysaccharide; (b) at least one antioxidant; and (c) water, wherein the (b) antioxidant has at least one negatively chargeable and/or negatively charged moiety selected from the group consisting of a sulfuric group, a sulfate group, a sulfonic group, a sulfonate group, a phosphoric group, a phosphate group, a phosphonic group, a phosphonate group, a phenolic hydroxyl group, a carboxylic group, and a carboxylate group. The composition according to the present invention can include a relatively larger amount of antioxidant.

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.

The present invention relates to a two-component cosmetic composition for wrinkle reduction. The two-component cosmetic composition for wrinkle reduction according to the present invention forms a coating having a sufficient strength to reduce a scrubbing phenomenon caused by external force and has a suitable viscosity as well as no cloudiness phenomena arising.

The present invention relates to a two-component cosmetic composition for wrinkle reduction. The two-component cosmetic composition for wrinkle reduction according to the present invention forms a coating having a sufficient strength to reduce a scrubbing phenomenon caused by external force and has a suitable viscosity as well as no cloudiness phenomena arising.

Provided is a water-in-oil emulsified sunscreen cosmetic having easiness to spread while applying and is unlikely to decrease SPF value when the applied site is wet with water while containing a high content of the hydrophobized ultraviolet scattering agent.

A water-in-oil emulsified sunscreen cosmetic containing the following components (A), (B), (C), and (D): (A) 10 mass % or more and 50 mass % or less of a hydrophobized ultraviolet scattering agent, (B) a dipolyhydroxystearic acid ester of a polyhydric alcohol, (C) 35 mass % or more and 85 mass % or less of a liquid oil agent, and (D) water; wherein a mass ratio of the component (B) to the component (A), [(B)/(A)], is 0.01 or more and 0.2 or less.

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 water-in-oil emulsion skin cosmetic having the property wherein contact with moisture, such as water or perspiration, increases the ultraviolet protection effects over those immediately after application, and also having an excellent feeling in use. The present invention relates to a water-in-oil emulsion skin cosmetic comprising (A) (a-1) a copolymer having silanol groups, and oxypropylene groups (PO) or oxyethylene groups (EO), and/or (a-2) a silylated peptide; and (B) an ultraviolet protectant.