Provided is a bath agent composition capable of sufficiently exhibiting an effect of promoting blood circulation obtained by blending a carbonate and an organic acid, and enhancing appearance stability and skin feeling at the time of bathing. The bath agent composition comprises the following components (A), (B) and (C): (A) a total of 0.00001 mass% ormore and 0. 5 mass% or less of ginsenoside Rg3 and/or ginsenoside Rh2; (B) a carbonate comprising 30 mass% or more of a dialkali metal carbonate; and (C) an organic acid, wherein a mass ratio of ginsenosides Rb2, Rb1, Rc and Rd to ginsenosides Rg3 and Rh2 ((Rb2+Rb1+Rc+Rd)/(Rg3+Rh2)) is 0 or more and 30 or less.