There is provided a core-shell particle comprising a polymer conjugate encapsulating an active agent, wherein the polymer conjugate comprises a biocompatible polymer and a polyacidic polymer. There is also provided a process for forming the core-shell particle, a delivery vehicle comprising the core-shell particle and a method for delivering an active agent to a desired site.

The present invention relates to an apparatus for forming a delivery path for a composition for treatment and an auxiliary assembly for skin treatment including the same, and provides an apparatus for forming a delivery path for a composition for treatment and an auxiliary assembly for skin treatment including the same, the apparatus comprising: a light source; a light irradiating unit for receiving a light from the light source to irradiate the light on a surface of skin; and a control unit for controlling a pulse waveform of a light irradiated through the light irradiating unit so as to form a plurality of pores, which form a path through which a composition applied on the surface of the skin is transferred inside, on the surface of the skin after irradiating the light.

The present invention is in the field of antimicrobial compositions, e.g. for personal care. In particular, the invention relates to antimicrobial compositions for oral care, such as toothpastes, comprising antimicrobial particles and a nonionic triblock copolymer. Accordingly, the present invention relates to antimicrobial compositions comprising a modified clay particle, the particle comprising an antimicrobial compound and a clay particle, and at least one a nonionic triblock copolymer. The invention further relates to the uses and methods of the antimicrobial compositions of the invention.

The present invention is directed to a personal care composition is disclosed comprising: a detersive surfactant from about 2% to 50%; an anti-dandruff active; a cationic polymer; a zinc-containing layered material wherein the zinc-containing layered material has a particle size in the range of from about 0.5 um to 4 um; wherein the ratio of silicone deposition to crystalline structurant deposition is greater than about 5.

Disclosed herein are a biodegradable polymer microparticle for a filler comprising a core and a shell, wherein the core contains secondary particles including aggregates of a plurality of primary particles, the shell has a raspberry shaped structure, an average particle diameter (D.sub.50) of the biodegradable polymer microparticle ranges from 20 to 200 μm, a manufacturing method thereof, a freeze-dried body including the same, and filler injection including the same.

A graphene product obtained from Graphene Nanofibers (GNFs), having a modified crystal structure and a defined size distribution. The product is non toxic and has useful biological properties such as modification of the adipocytes phenotype. The product can be used in cosmetics.

The present invention provides a tooth whitening film. The tooth whitening film comprises a dental bleaching agent comprising one or both of a non-hydrogen peroxide bleaching agent and hydrogen peroxide in a hydrogen peroxide-polymer complex, one or more polyphosphates, said one or more polyphosphates comprising one or more cyclic polyphosphates, one or more water soluble film-forming polymers, one or more plasticizers and one or more emulsifiers, wherein the film has a thickness from about 50 μm to about 500 μm. A kit comprising one or more such films having a thickness from about 50 μm to about 150 μm and a dental aligner is also provided. A process for the manufacture of the film is also provided, together with a method of using such a film to bleach teeth.

It relates to a food-grade coated particle comprising: a) a core that comprises a (C.sub.4-C.sub.12)polycarboxylic acid; and b) a coating that comprises: (i) an alkali metal salt of a (C.sub.4-C.sub.12)polycarboxylic acid wherein at least one carboxylic group of the (C.sub.4-C.sub.12)polycarboxylic acid is in the acid form, and at least one carboxylic group of the (C.sub.4-C.sub.12)polycarboxylic acid is in the salt form, and (ii) a film-forming agent; wherein the weight ratio between (i) and (ii) is from 20:80 to 40:60. It also relates to processes for the preparation of these food-grade coated particles, to their use as food additives, as well as to foodstuffs comprising them.

A method of producing efficiently and stably core-shell type oxide particles, wherein the entire surface of the core oxide particles is uniformly coated with the shell oxide, includes at least two steps of: Step 1 of precipitating the core oxide particles in a mixed fluid prepared by mixing an oxide raw material liquid for core and an oxide precipitation solvent and Step 2 of coating the entire surface of the core oxide particles uniformly with the shell oxide by mixing the mixed fluid and an oxide raw material liquid for shell. (A) At least Steps 1 and 2 are performed continuously between at least two processing surfaces 1 and 2 which are capable of approaching to and separating from each other, at least one of which rotates relatively to the other; (B) after Step 1, Step 2 is completed within a prescribed time during which the core oxide particles do not aggregate in the mixed fluid; or (C) Step 1 and Step 2 are controlled so that the primary particle diameter of the core-shell type oxide particles is 190% or less relative to the primary particle diameter of the core oxide particles.

Ultraviolet radiation sun protective compositions are reported which feature micronized metal oxide inorganic particles selected from zinc oxide, titanium dioxide and mixtures thereof, the inorganic particles being coated with an adduct of a hydroxy cinnamate and a silanol, amounts of the adduct to the inorganic particles being in a relative weight ratio of 1:200 to 1:4.