The non ionicity surface active agent aggregate, the water insoluble destruction of life thing active ingredient, includes non ionicity surface active agent system and the water. The said non ionicity surface active agent system the 1st non ionicity surface active agent and includes the 2nd non ionicity surface active agent.非イオン性界面活性剤集合体は、水不溶性殺生物活性成分、非イオン性界面活性剤系及び水を含む。該非イオン性界面活性剤系は、第1非イオン性界面活性剤及び第2非イオン性界面活性剤を含む。