PROBLEM TO BE SOLVED: To provide a foamable skin care preparation enabling easy adjustment of dispersibility of granules in a viscous composition, having highly compatibilized moderate foaming power and foam stability to exhibit a desired beauty effect and adjustability of skin stimulation, and developing good fitness to the skin while preventing dripping of liquid at application to the skin, and to provide acidic granules to be used in the foamable skin care preparation, and a method for producing the granule.SOLUTION: There is provided acidic granules for a foamable skin care preparation usable as acidic granules of the foamable skin care preparation comprising a combination of a viscous composition at least containing a carbonate and an acidic granule to be mixed with the viscous composition in use and at least containing an acidic substance reacting with the carbonate and generating foam and a water-soluble granulation agent.COPYRIGHT: (C)2014,JPO&INPIT【課題】顆粒の粘性組成物への分散性の調整が容易であり、求める美容効果が発揮される適度な発泡力及び発泡持続性の両立と肌への刺激感の調整に優れ、塗布時の液垂れを防ぎつつ、肌への馴染み感にも優れる発泡性皮膚外用剤、並びにこれに用いる発泡性皮膚外用剤用酸性顆粒及びその製造方法の提供。【解決手段】本発明の発泡性皮膚外用剤用酸性顆粒は、炭酸塩を少なくとも含有する粘性組成物と、使用時に前記粘性組成物と混合され、かつ前記炭酸塩と反応して発泡を生じさせる酸性物質及び水溶性顆粒化剤を少なくとも含有する酸性顆粒と、を組み合わせた発泡性皮膚外用剤における該酸性顆粒として用いられる。【選択図】なし
