PROBLEM TO BE SOLVED: To provide a hair styling agent composition using α-ketoglutaric acid as a hair styling component. Further, the present invention provides a hair styling agent composition having excellent moisture resistance of a hairstyle after hair styling. The hair conditioner composition of the present invention contains a component (A): α-ketoglutaric acid and a component (B): water and / or ethanol, and the content ratio of the component (A) is 0.01. It is ~ 0.8% by mass and the pH is 6.8 or less. [Selection diagram] None【課題】α-ケトグルタル酸を整髪成分として用いた整髪剤組成物を提供する。また、整髪後の髪型の耐湿性に優れる整髪剤組成物を提供する。【解決手段】本発明の整髪剤組成物は、成分(A):α-ケトグルタル酸、並びに成分(B):水及び/又はエタノールを含有し、前記成分(A)の含有割合が0.01~0.8質量%であり、pHが6.8以下である。【選択図】なし