PROBLEM TO BE SOLVED: To provide a mild acidic transparent cleansing preparation which has a good feeling of use such as foaming, foam quality, elimination of foam, and a feeling after washing out, and in which generation of cloudiness, dregs or sediment at a low temperature does not appear.SOLUTION: A mild acidic cleansing preparation contains the following (A)-(E): (A) 2-20 mass% of a long chain acyl neutral amino acid salt, (B) 1-20 mass% of a long chain fatty acid amidopropylbetaine, (C) 0.3-6 mass% of a long chain fatty acid diethanolamide, (D) 0.01-1 mass% of a pH adjuster, and (E) 0.1-5 mass% of alcohols.COPYRIGHT: (C)2015,JPO&INPIT【課題】泡立ち、泡質、泡切れ、洗い流し後の感触等の使用感が良好で、且つ低温での白濁、おりや沈殿物の発生などが認められない、弱酸性透明洗浄料を提供する。【解決手段】下記の(A)~(E)(A)長鎖アシル中性アミノ酸塩 2~20質量%(B)長鎖脂肪酸アミドプロピルベタイン 1~20質量%(C)長鎖脂肪酸ジエタノールアミド 0.3~6質量%(D)pH調整剤 0.01~1質量%(E)アルコール類 0.1~5質量%を含有する弱酸性洗浄料。【選択図】 なし