PROBLEM TO BE SOLVED: To provide a kit that facilitates uniform mixture and generates carbon dioxide without unevenness for obtaining a foamable skin external preparation of consistent quality regardless of the quality of water used and while saving the time and effort for a user to take measurements.SOLUTION: The present invention provides a kit for obtaining a foamable skin external preparation, characterized in that a first agent is a composition comprising acidic substance and thickener, and a second agent is a composition comprising carbon dioxide generating substance that reacts with the acidic substance to generate carbon dioxide, water and/or humectant. The first agent is a solid composition, and the second agent is a liquid composition having a viscosity of 50,000 mPa s or less.COPYRIGHT: (C)2016,JPO&INPIT【課題】混合時に均一に混ざりやすく、炭酸ガスがムラなく発生し、使用者の計量の手間や使用する水の品質によらず一定品質の発泡性皮膚外用剤を得るためのキットの提供。【解決手段】発泡性皮膚外用剤を得るためのキットであって、第一剤が酸性物質及び増粘剤を含有する組成物であり、第二剤が前記酸性物質と反応して炭酸ガスを発生する炭酸ガス発生物質、水及び/又は保湿剤を含有する組成物であるキット。第1剤が固体状組成物であり、第2剤が50,000mPa・s以下の粘度である液状組成物であるキット。【選択図】なし
