This skin cleanser composition comprises components (A), (B) and (C), (A) being an alkyl ether carboxylic acid represented by general formula (1) (in the formula, R1 represents a C4-22 alkyl group and n represents a number from 0-20), wherein the average number of carbon atoms in R1 is 10.8-12.8, the inclusion amount of components in which n=0 is 4.3-30 mass%, and the combined inclusion amount of components in which n=1 and components in which n=2 is at least 20 mass% but less than 40 mass%, (B) being a fatty acid represented by general formula (2) (in the formula, R2 represents a C9-21 straight-chain or branched-chain alkyl group or alkenyl group), and (C) being a neutralizing agent. Therein, the total inclusion amount of components (A) and (B) is 20-50 mass%, the degree of neutralization of components (A) and (B) is 0.6-0.9, and the viscosity at 30 DEG C is 10-50000 dPass.本發明為一種皮膚洗淨劑組成物,其含有下述成分(A)、(B)及(C):(A)由一般式(1)所示之烷基醚羧酸;[化1]R1-O-(CH2CH2O)n-CH2-COOH (1)(式中,R1表示碳數4~22之烷基,n表示0~20之數),R1之平均碳數為10.8~12.8含有n=0之成分4.3~30質量%,n=1之成分與n=2之成分的合計含量為20質量%以上且未滿40質量%;(B)由一般式(2)所示之脂肪酸;[化2]R2-COOH (2)(式中,R2表示碳數9~21之直鏈或分枝鏈之烷基或烯基);(C)中和劑;成分(A)及(B)之合計含量為20~50質量%,成分(A)及(B)之中和度為0.6~0.9,30℃下之黏度為10~50000dPa‧s。
