| 摘要 |
A water-in-oil emulsion suitable for topical application to human skin for the treatment of acne, comprises in addition to water a C1 to C4 alkyl lactate, a silicone oil ingredient containing a dispersion in a volatile siloxane of a polymer of dimethyl polysiloxane with polyoxyethylene and/or polyoxypropylene side chains having a molecular weight of from 10,000 to 50,000, a nonionic liquid emulsifier having an HLB value of from 1 to 7, and a C1 to C4 alkanol, the emulsion consisting essentially of an aqueous phase forming from 10 to 98% by volume and an oily phase forming from 2 to 90% by volume.
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