A liquid oral composition that exerts an excellent effect of removing colored stains while giving a favorable feeling in using. The liquid oral composition comprises (A) 0.1-2 mass% inclusive, in terms of carbonic acid, of one or more kinds of carbonic acid salts selected from among sodium hydrogen carbonate, sodium carbonate and sodium sesquicarbonate, (B) 0.2-1.7 mass% inclusive of an anionic surfactant, and (C) 60-99.5 mass% inclusive of water, wherein: a polyvalent metal cation (D) is contained in an amount less than 0.1 time by mol as much as component (A) the product of the amount, in terms of carbonic acid, of component (A) with the content of component (B)[(A)*(B)] is 0.9 or less and the pH value at 25 DEG C is 8.5-10.5 inclusive.本發明係關於一種保持良好之使用感並且著色污垢之去除效果優異之液體口腔用組合物。 本發明之液體口腔用組合物含有如下成分(A)、(B)及(C): (A)以碳酸換算量計為0.1質量%以上且2質量%以下之選自碳酸氫鈉、碳酸鈉、及倍半碳酸鈉中之1種或2種以上之碳酸鹽、 (B)0.2質量%以上且1.7質量%以下之陰離子界面活性劑、 (C)60質量%以上且99.5質量%以下之水,且 多價金屬陽離子(D)之含量相對於成分(A)未達0.1倍莫耳,成分(A)之碳酸換算量與成分(B)之含量的乘積之值((A)×(B))為0.9以下,並且25℃下之pH值為8.5以上且10.5以下。無
