PROBLEM TO BE SOLVED: To provide an excellent antiperspirant composition excellent in persistence of antiperspirant effect and antiperspirant effect, no- stickiness to the skin at the time of use, conformability to the skin at the time of use, and dry-ability after coating.SOLUTION: According to the present invention, there is provided an antiperspirant composition comprising: (A) an antiperspirant component; (B) an acrylic acid-alkyl methacrylate copolymer; and (C) ethanol. In the composition, a 3-mass% sodium chloride aqueous solution containing 1 mass% of the component (B) has a viscosity of 5,000 mPa.s to 20,000 mPa.s at 25°C and pH 7. The mass ratio [A/(B+B)] of the content (mass%) of the component (A), the content (mass%) of the component (B), and the content (mass% C)] is 0.3-3.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】制汗効果、制汗効果の持続性、使用時の肌のべたつきのなさ、使用時の肌へのなじみやすさ、及び塗布後の乾きやすさが良好である優れた制汗剤組成物の提供。【解決手段】(A)制汗成分と、(B)アクリル酸-メタクリル酸アルキル共重合体と、(C)エタノールとを含有し、前記(B)成分を1質量%含有する、3質量%塩化ナトリウム水溶液の粘度が、25℃、pH7において5,000mPa・s~20,000mPa・sであり、前記(A)成分の含有量(質量%)と、前記(B)成分の含有量(質量%)と、前記(C)成分の含有量(質量%)との質量比[A/(B+C)]が、0.3~3である制汗剤組成物である。【選択図】なし