Provided is a solid effervescent bathing product which is effectively prevented from sticking to a tableting pestle during production and, when put into bath water before using in such a manner that the solid effervescent bathing product is directly in contact with the legs or palms of a user, which can provide a sufficient warm sensation to the user. The solid effervescent bathing product according to the present invention comprises (A) 20-50 mass% inclusive of carbonate(s) containing 15-100 mass% inclusive of sodium hydrogen carbonate, (B) an organic acid, and (C) an inorganic compound which generates 150-500 cal/g inclusive of heat when dissolved in water, wherein the ratio by mass of component (C) to sodium hydrogen carbonate [(C)/sodium hydrogen carbonate] is 0.6-7.0 inclusive.本發明係關於一種固狀發泡性浴用劑，其於製造時有效地抑制對打錠杵之附著，並且於使用時，於在浴水中使腳或手掌直接接觸而使用時，可實際感受到充分之溫熱效果。即，本發明係關於一種固狀發泡性浴用劑，其含有：(A)含有15質量%以上且100質量%以下之碳酸氫鈉之碳酸鹽20質量%以上且50質量%以下(B)有機酸(C)將1.0g溶解於水中時之發熱量為150cal/g以上且500cal/g以下之無機化合物，且成分(C)相對於碳酸氫鈉之質量比((C)/碳酸氫鈉)為0.6以上且7.0以下。
