There is provided a method of preparing a hybrid capsule, the method comprising heterocoagulating organic polymer latex particles with a primary capsule to form an organic polymer coating layer over a shell of the primary capsule.

Provided are coated particles and methods of their use for providing healthcare benefits. More specifically, the present invention provides amino acid and/or polymer-coated particles, or particles coated with other materials, for binding to, or otherwise associating with, surfaces of the oral cavity.

Provided are skin care compositions that are useful as SPF and UV absorption boosters in formulations containing inorganic metal oxides. The compositions comprise (a) 0.1 to 20 weight % inorganic metal oxide particles, based on the weight of the composition, (b) 0.1 to 15 weight % copolymer particles dispersed in an aqueous medium, wherein the copolymer particles comprise polymerized units derived from (i) 0.1 to 20 weight % of phosphorus acid monomers, and (ii) 80 to 99.9 weight % of comonomers, and (c) a dermatologically acceptable carrier. Also provided are methods of protecting skin from UVA and UVB damage comprising topically administering such compositions to the skin, and methods of boosting the SPF or UV absorption of a sunscreen composition containing inorganic metal oxide particles comprising including such copolymer particles in the composition.

Disclosed are: a co-emulsified composition containing different emulsification particle sizes; and a method for preparing the same. The co-emulsified composition contains an amphipathic anisotropic power and a surfactant, thereby allowing emulsification particles with different sizes to coexist in one dosage form, and thus a co-emulsified composition can be provided that simultaneously implements two or more feelings of use or physical characteristics.

A chemically anisotropic powder with improved emulsion dispersion stability, and a cosmetic composition containing the same are disclosed in the present specification. The chemically anisotropic powder has a first polymer spheroid and a second polymer spheroid coupled in such a structure in which one polymer spheroid at least partially penetrates the other polymer spheroid, wherein any one of the first polymer spheroid and the second first polymer spheroid comprises a polymer containing siloxane, and one or more of the first polymer spheroid and the second first polymer spheroid are negatively or positively charged, thereby having effects of preventing phase separation even with a minimum amount of a thickening agent and enabling a toner type low-viscosity form containing a high oil content, the toner type low-viscosity form having yet to be applied.

The present invention relates to microcapsules comprising a capsule core and a capsule shell wherein the capsule shell comprises a core surrounding layer of a polyvinyl alcohol and an adjacent layer of a polyoxazoline, a process of their production and their use.

The present invention relates to an emulsion not containing any emulsifying surfactant, in particular to an oil-in-water emulsion not containing any emulsifying surfactant, characterized in that it comprises, especially in a physiologically acceptable medium, at least composite particles comprising a core comprising at least organic or inorganic particles A; said core being covered at the surface, continuously or discontinuously, with an envelope comprising at least organic or inorganic particles B; said particles A and B having different polarities.

The present invention also relates to the use of the composite particles as defined previously as emulsion stabilizer, in particular as stabilizer for an emulsion not containing any emulsifying surfactant, and more particularly as stabilizer for an oil-in-water emulsion not containing any emulsifying surfactant.

The present invention also relates to a cosmetic process for treating a keratin material, which consists in applying to the keratin material an emulsion as defined previously.

Method for encapsulating a hydrophilic or amphiphilic biological compound, particles obtained by said method, compositions comprising them and uses thereof are disclosed.

Disclosed are a chemically asymmetric anisotropic powder, a stabilized water-in-oil (W/O) emulsification composition containing the same, and a method for preparing the same. The composition contains a chemically asymmetric anisotropic powder that forms emulsification particles with a stabilized interface film and various sizes, thereby providing a stabilized W/O emulsification composition having a low-viscosity formulation, which has a significantly lighter feeling of use than existing W/O formulations.

The disclosure describes a pigment suspension comprising a) at least one colorant compound selected from the group of pigments and b) an ester of glycerol with an aliphatic C.sub.2-C.sub.6 carboxylic acid. The disclosure also discloses a cosmetic agent obtainable by combining the pigment suspension with one or more organic C.sub.1-C.sub.6 alkoxysilanes and/or condensation products thereof.