PROBLEM TO BE SOLVED: To obtain an antimicrobial composition having sufficiently high antimicrobial effect without increasing its antimicrobial matter content, thus mitigating the toxicity, irritancy, or the like, associated with the increase in its antimicrobial matter content, and particularly useful as a cosmetic.SOLUTION: This antimicrobial composition comprises (A) an antimicrobial matter and (B) a bifunctional or higher functional organic acid with a pKa 1 value of 4-7.COPYRIGHT: (C)2003,JPO【解決手段】 次の成分(A)及び(B):(A)抗菌性物質(B)pKa1値が4~7である2価以上の有機酸を含有する抗菌性組成物。【効果】 本発明の抗菌性組成物は抗菌性物質を増量することなく十分な強い抗菌性を有し、抗菌性物質の増量に伴う毒性、刺激性等が軽減でき、化粧料とすると特に有用である。
