A hair treatmentt composition comprising components (A) to (D), wherein the mass ratio (A)/(B) between the content of the component (A) and the content of the component (B) is from 0.05 to 2.0, and the pH value of the hair treatment composition is from 2.5 to 5.0 (A): polyglycerin, in which with regard to the ratio among a total content (p) of triglycerin and tetraglycerin, a content (q) of diglycerin, and a total content (r) of pentaglycerin and higher order oligomers in the entire polyglycerin, q/p is less than 0.5 and r/p is less than 0.5 (B): alkyl glyceryl ester or alkyl glyceryl ether having an HLB of 2 to 7 (C): aromatic alcohol and (D): cationic surfactant.本發明之毛髮處理劑組合物含有成分(A)~(D),成分(A)之含量與成分(B)之含量的質量比(A)/(B)為0.05~2.0,且pH值為2.5~5.0。(A):全部聚甘油中甘油三聚物與甘油四聚物之合計含量(p)、甘油二聚物之含量(q)、甘油五聚物以上之合計含量(r)之比率為q/p未達0.5、r/p未達0.5的聚甘油(B):HLB為2~7之烷基甘油酯或烷基甘油醚(C):芳香族醇(D):陽離子界面活性劑。
