A cosmetic or personal care formulation includes a carrier and porous metal oxide spheres wherein, the porous metal oxide spheres have, e.g., an average diameter of about 0.5 μm to about 100 μm and an average porosity of about 0.10 to about 0.80; the porous metal oxide spheres have one or more population of pores each having an average pore diameter, wherein each population has a different average pore diameter and wherein the average pore diameters are, e.g., from about 50 nm to about 999 nm.

Provided are porous spherical silica particles whose oil absorption is suppressed while the porous spherical silica particles have a large specific surface area; and a method for manufacturing such spherical silica particles.

According to the present invention, provided are spherical silica particles whose specific surface area obtained by employing a BET method is 300 m.sup.2/g or more, total pore volume is 0.3 ml/g or less, and oil absorption is 50 ml/100 g or less, the spherical silica particles obtained by subjecting silica gel particles obtained by employing a sol-gel method, for example, in which an alkali silicate is emulsified and coagulated, to only drying at a low temperature without subjecting the silica gel particles to calcination at a high temperature; and a method for manufacturing such spherical silica particles.

A make-up emulsion composition includes an aqueous internal phase emulsified in an external fatty phase. The fatty phase includes at least one silicone oil, silicone resin, silica aerogel, spherical silica, clay, starch, pigment, and emulsifier. Methods of use are also provided.

Described are ready-to-use injectable compositions comprising polymeric microspheres or microparticles of non-animal origin, a hydrogel comprising water and a cellulose-derivative gelling agent, and polysorbate 80. Further described are methods of using the ready-to-use injectable compositions for reparative or plastic surgery, esthetic dermatology, facial contouring, body contouring, and gingival augmentation.

Provided are cellulose acetate particles. The cellulose acetate particles have an average particle size of 80 nm or greater and 100 μm or less, a sphericity of 0.7 or greater and 1.0 or less, and a relative specific surface area of 3.0 or greater and 20 or less. A total degree of acetyl substitution of the cellulose acetate is 0.7 or greater and 3.0 or less.

A process for preparing spherical polymeric particles of polymers containing at least two fillers, dispersed in the polymer matrix wherein up to 50% of the weight of the particles is composed by fillers. The process comprises a melt-blending of a polymeric matrix containing the at least two fillers with a continuous phase that is not miscible with the polymeric matrix and an agent to form an emulsion. This emulsion is then extruded, cooled and a solvent of the continuous phase is added to recover the spherical particles. The fillers can provide different properties to the spherical particles which can be used, for example, for cosmetic applications, specifically for preventing and/or reducing the signs of skin ageing.

Personal care compositions contain a carrier that includes at least one hydrophobic component or gelling agent and optionally water, coral-shaped metal (e.g., gold) nanoparticles dispersed throughout the carrier and forming a nanoparticle stabilizing matrix within the carrier, and spherical-shaped metal (e.g., silver) nanoparticles dispersed throughout the carrier and stabilized by the nanoparticle stabilizing matrix formed by the coral-shaped metal nanoparticles. The spherical-shaped metal nanoparticles act as a preservative and prevent spoiling of personal care products. The coral-shaped metal nanoparticles provide personal care products with hydrodynamic and antioxidant properties. The weight ratio of coral-shaped metal nanoparticles to spherical-shaped metal nanoparticles can be 1:1 to 50:1. The concentration of coral-shaped metal nanoparticles can be 1 ppm or greater, and the concentration of spherical-shaped metal nanoparticles can be less than 1 ppm. Examples of personal care products include sprays, serums, oils, gels, creams, lotions, emulsions, and semi-solids.

A make-up emulsion composition includes an aqueous internal phase emulsified in an external fatty phase. The fatty phase includes at least one silicone oil, silicone resin, silica aerogel, spherical silica, clay, starch, pigment, and emulsifier. Methods of use are also provided.

A spherificated dental medicament that includes an outer membrane containing calcium alginate and an internal core containing at least one of a mouth rinse, a mouthwash, a dental paste, and a dental gel, A method of making the spherificated dental medicament includes immersing a dental medicament composition into a solution containing either a soluble alginate or calcium salt, the dental medicament composition comprising a calcium salt or a soluble alginate and at least one of a mouth rinse, a mouthwash, a dental paste and a dental gel, and then removing the dental medicament composition from the solution following formation of a membrane around the dental medicament composition.

Disclosed a method of preparing composite particles comprising a non-porous spherical particulate inorganic material deposited on a plate-like inorganic material, where refractive index of said particulate inorganic material is greater than that of said plate-like inorganic particulate material, wherein, said spherical material occupies 20 to 80% of total surface area of said plate-like material and wherein the amount of said spherical material accounts for 2 to 20 wt % of said composite particles, further wherein said plate-like inorganic material is mica and said non-porous spherical particulate inorganic material is silicone dioxide, said method comprising the steps of: (iv) silanization of said plate-like inorganic material to get a silanized material having functional groups “A”; (v) silanization of said non-porous spherical particulate inorganic material to get a silanized material having functional groups “B”, where A≠B; and where said “A” and said “B” are capable of reacting with each other such that by way of their reaction, said non-porous spherical particulate inorganic material deposits on said plate-like inorganic material; and, (vi) reacting said silanized material having functional groups “A” with said silanized material having functional groups “B”.