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Method of formulating a personal care product with substantially no whitening effect when applied on wet skin and compositions thereof
Method of formulating a personal care product with substantially no whitening effect when applied on wet skin and compositions thereof
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机译:当配制在湿皮肤上时基本上没有增白作用的个人护理产品的方法及其组合物
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摘要
The present disclosure relates, according to some embodiments, to methods of formulating a personal care product (e.g. sunscreen) composition that is stable when exposed to high and/or low temperatures for extended periods and that applies clear to wet skin and remains clear. A method may comprise, for example, combining a discontinuous oil phase with a low HLB emulsifying compound and one or more UV filters to form an oil phase mixture; heating and mixing the oil phase mixture; dispersing one or more non-emulsifying grade carbomer polymers in a continuous water phase to form a water phase mixture; combining and mixing the oil phase mixture and the water phase mixture to form a pre-emulsion; adding a neutralizing base to form a personal care product emulsion; adding water (e.g., to replace water lost during processing); and mixing the emulsion to form a homogenous composition. The present disclosure relates, in some embodiments, to compositions (e.g., stable compositions) for topical application to human skin (e.g., that are non-whitening when applied to wet skin). A composition may comprise, for example, a continuous water phase, a discontinuous oil phase dispersed in said continuous water phase, a low HLB emulsifying compound that is a liquid at room temperature present at from 0% to 1% by weight of the composition, a complete absence of any other emulsifying compound, a stabilizing, and non-whitening amount of one or more non-emulsifying grade carbomer polymers selected from the group carbomer copolymer, carbomer interpolymer, and carbomer homopolymer.
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