Abstract: The invention relates to a two part cosmetic composition for application to a biological surface to impart a swelling effect comprising a siloxane polymer with at least two hydroxy-functionalized terminal groups or hydroxy-functionalized side chains and/or a polyol with at least two hydroxyl groups, a hydrosiloxane with at least two Si—H units and a catalyst, wherein in one part of the composition the siloxan polymer and/or the polyol and the catalyst or the hydrosiloxane are contained and in the other part of the composition the hydrosiloxane or the catalyst are contained and wherein said catalyst catalyzes in-situ cross-linking of the siloxane polymer or polyol and the hydrosiloxane by dehydrogenative coupling to form a foamed elastomeric transfer resistant film after combination of the two parts.

Abstract: Various systems and methods for implementing a UV LED lightbar for setting a UV-curable nail formulation are described herein. A lightbar comprises a detachable UV lightbar comprising a plurality of UV lights with at least two of the plurality of UV lights having different UV light output; and a connector for connection to a power supply, where the detachable UV lightbar is controlled by a controller connectably attachable to the connector, the controller configured to control the plurality of UV lights in a manner to cure a nail gel preparation. A method for curing a nail gel preparation comprises identifying by a processing device, the nail gel preparation; and configuring an UV light assembly to cure the nail gel preparation.