Abstract: The present invention achieves bio-mechanical stimulation of collagen synthesis in skin cells and reduction of the appearance of fine lines and wrinkles on the skin by applying a polymeric composition onto the skin in a manner so as to create surface tension that mimics the natural mechanical tension found in youthful skin.

Abstract: The present invention relates to method for modifying or treating solid particles which includes the steps of: (a) forming a gelled mixture by mixing either simultaneously or sequentially in any order: (1) hollow microspheres each comprising a deformable polymeric shell having entrapped therein an expandable fluid, (2) a polar organic solvent capable of swelling but not dissolving the polymeric shells of the hollow microspheres, and (3) solid particles, wherein micro-channels are formed in the swelled polymer shells to allow entry of the solid particles into the hollow microspheres and exit of the expandable fluid therefrom, thereby forming microspheres that each comprises a collapsed polymeric shell in a gelled state and has one or more of said solid particles entrapped therein; (b) removing the expandable fluid and the polar organic solvent from the gelled mixture; and (c) coating the microspheres thus-produced with a film-forming material to form a liquid-impermeable membrane thereon.

Abstract: Topical compositions containing pigment particles entrapped in microspheres are provided. Each of the microspheres contains a collapsed polymeric shell that has entrapped therein one or more pigment particles. The microsphere-entrapped pigment particles are characterized by enhanced color intensity, improved stability, and better dispersibility, which can readily be used either alone or in combination with other skin active ingredients to form better colored cosmetics.

Abstract: The invention is directed to a cosmetic composition comprising at least one perfluorinated component and at least one aromatic component, wherein the aromatic component is present in an amount sufficient to compatibilize the fluorinated component in the cosmetic composition; transfer resistant, long wearing or other types of cosmetic or pharmaceutical compositions containing the components and a method for compatibilizing a fluorinated component in a cosmetic composition using an aromatic component, and cosmetic compositions containing at least one perfluorinated amide.

Abstract: The present invention relates to topical compositions containing a dispersion of composite particles. Each of such composite particles contains one or more core particles encapsulated or entrapped in a polymeric shell. At least some of the core particles are formed of a material capable of causing generation of reactive oxygen species (ROS). Each of the composite particles further contains: (1) a first antioxidant co-encapsulated or co-entrapped with the core particles inside the polymeric shell for quenching or scavenging ROS generated in the vicinity of the core particles, and (2) a second antioxidant coated over the polymeric shell for preventing or reducing oxidative damage to the skin, such as lipid peroxidation. The particle dispersion of the present invention therefore can be readily formulated into topical sunscreen compositions with organic sunscreen agents susceptible to oxidative decomposition or degradation to provide improved protection against skin damage caused by exposure to UV light.

Abstract: A composition including a film-former and a porous polymeric release system comprising a solvent for the film-former is provided. Also provided is a method of prolonging the physical stability of a film-former on the skin by applying to the skin a self-healing composition containing the film-former and a porous polymeric release system comprising a solvent for the film-former.

Abstract: The present invention relates to topical compositions containing solid particles that are stabilized via entrapment by microspheres. Each of the microspheres contains a collapsed polymeric shell that has entrapped therein one or more solid particles. The solid particles are preferably formed of zinc oxide or titanium dioxide or both, which can readily be used either alone or in combination with other sunscreen agents to form sunscreen compositions of broader UV protection spectrum and enhanced photostability.

Abstract: The invention relates to thermoplastic hollow microspheres containing one or more skin benefit agents entrapped therein. The microspheres are useful in the topical delayed release of the skin benefit agent.