[Object]

To provide a decorative aqueous composition that includes particles formed from opal-type colloidal crystals uniformly and stably dispersed in an aqueous dispersion medium, and exhibits a structural color due to interference of light, and to provide a method for producing the decorative aqueous composition.

[Solution]

The decorative aqueous composition of the present invention contains particles of opal-type colloidal crystals dispersed in an aqueous dispersion medium in which a polymer is dissolved. The particles of the opal-type colloidal crystals are made from hydrophilic colloidal particles having an average particle diameter ranging from 10 nm to 1000 nm with a variation coefficient of the particle diameter being within 20%. Therefore, the decorative aqueous composition of the present invention contains opal-type colloidal crystals uniformly and stably dispersed in an aqueous dispersion medium, and exhibits a structural color due to interference of light. As a result, the decorative aqueous composition can be suitably used in a cosmetic lotion or the like.

Composite particles that are biodegradable and easy to handle while maintaining the characteristics of cellulose nanofibers, a method of producing composite particles, a dry powder containing the composite particles, and a skin application composition and a method of producing the skin application composition. A composite particle contains at least one type of particle and fine cellulose with which at least part of a surface of the particle is coated, wherein the particle and the fine cellulose are inseparable.

Disclosed are porous composite particles and compositions comprising the same. The porous composite particles comprising base of an amphiphilic or hydrophobic polymer and 0.1 to 20% of a pigment based on the total weight of porous composite particles, where said particles have 50 to 95 vol % internal porosity and an outer surface which is either continuous and devoid of pores or is discontinuous comprising plurality of pores whose total area is 0.01 to 30% of the total outer surface area. When typically applied, the compositions impart improving the characteristics of skin.

The present invention relates to the use of non-dissolved starch based particles, having a particle size of 0.2-4 pm and having a composition of 0.3-5% by weight of protein, 0.1-4% by weight of lipids, 0-1.6% by weight fibre and <0.45% by weight ash and the remaining part of the composition is carbohydrate adding up to 100% by weight, in cosmetic formulations and the preparation of said particle.

Provided herein are color protectant compositions for dyed human hair, and methods for determining the same.

The present invention provides a multilayer type powder-containing cosmetic preparation which can be variously formulated and in which the powder ingredient has excellent re-dispersibility without being required to have undergone a surface treatment. The a multilayer powder-containing cosmetic preparation includes (a) to (c) components: (a) a 60-95% by mass lower alcohol; (b) a powder ingredient (excluding a (c) component); and (c) a finely particulate powder which has an average primary-particle diameter of 10-550 nm and includes silica or titanium dioxide as a core.

According to the present invention, provided is a core-shell structured chromic microcapsule having a size of 50-1,500 m, comprising: a core comprising a colorant core (A) and an optional inner color layer (B); and a shell comprising a pressure sensitive destructible wall layer (C) encompassing the core, an optional outer color layer (D) and an optional outermost protective layer (E), wherein the colorant core allows a high content of a colorant to be contained, and the pressure sensitive destructible wall layer comprises carbon dioxide particles and a binder comprising one or more wall-forming materials and one or more lipid-base materials. The chromic microcapsule according to the present invention has high colorant content, has excellent storage durability, maintenance durability and color-hiding property of the inner color layers, is easily destroyed by pushing, rubbing, polishing or scrubbing with the hands or a tool (cotton fabric, sponge or paper) so as to express the color of the inner color layers, and can maintain stability for a long time even if being added into a carrier.

Semisolid oral dispersions for improving the health and/or appearance of the oral cavity. The semisolid oral dispersions include hydrophilic active agent particles in hydrophobic phase. The hydrophilic active agent particles can include bleaching agents, antimicrobial agents, anticalculus agents, and/or combinations thereof. The hydrophilic active agent particle can have a solubility in water of at least about 20 parts, by weight of the particles, in about 100 parts, by weight, of water.

Provided is a cosmetic composition including organic-inorganic composite particles for blocking near-infrared rays. When the cosmetic composition for blocking near-infrared rays according to the present disclosure is applied to skin, light in the near-infrared region may be significantly blocked. The cosmetic composition may be used as a multifunctional product in combination with a UV-blocking material to block a wide range of wavelengths adversely affecting the skin, thereby preventing skin aging.

Compositions and methods of manufacture for an extended time-release fragrance comprising volatile organic compounds. A composition of the disclosure includes an effective amount of a volatile organic compound for providing a fragrance that can be sensed by a user and fractionated coconut oil comprising caprylic acid and capric acid.