To provide a packaged bath agent capable of forming a foaming bath agent in a combined container, and being thrown as it is into bathing hot water by devising boring of through holes to the combined container.SOLUTION: A packaged bath agent which comprises a synthetic resin combined container (3), and a foaming bath agent (2) stored in a storage chamber (30) of the combined container is such that: the combined container is configured of a first container body (4) and a second container body (5), and includes through holes (6) in at least one of both container bodies； a first container body opening (4a) and a second container body opening (5a) are opposed to each other, and are integrated by coupling means (7) provided in the opening side end parts so as to store the foaming bath agent in the storage chamber due to the integration； and the combined container for storing the foaming bath agent is thrown as it is into bathing hot water (W) in a bathtub so that bathing hot water infiltrates into the storage chamber from the through holes, and the foaming bath agent reacts due to the bathing hot water, and generates gas (G) while being dissolved, and the gas blows out from the through holes to bathing hot water in the bathtub and becomes air bubbles (K).SELECTED DRAWING: Figure 1【課題】 組合容器にて発泡入浴剤を形成し得るようにすると共に、組合容器に対する貫通孔の穿設に工夫を凝らし、そのまま浴湯に投入し得る容器入り浴剤を提供することにある。【解決手段】 合成樹脂製の組合容器（３）と、該組合容器の収容室（３０）に収まる発泡入浴剤（２）から成り、組合容器は第一容器体（４）と第二容器体（５）から構成され、両容器体の少なくとも一方に貫通孔（６）を備え、第一容器体開口部（４ａ）と第二容器体開口部（５ａ）を向かい合わせにし、その開口側端部に設けた結合手段（７）にて一体化し、一体化により発泡入浴剤を収容室に納めるものであり、発泡入浴剤を収容した組合容器をそのまま浴槽内の浴湯（Ｗ）に投入することで、貫通孔より収容室に浴湯が浸入し、その浴湯によって発泡入浴剤が反応し、溶解しながら気体（Ｇ）を発生し、気体が貫通孔より浴槽内の浴湯に噴出して気泡（Ｋ）となることを特徴とする。【選択図】 図１
