PROBLEM TO BE SOLVED: To provide a method for producing an external preparation for skin based on an objective evaluation by converting "a feeling of skin compatibility", "a feeling of penetration", and "a feeling of stickiness" into numbers.SOLUTION: There is provided a method for producing an external preparation for skin comprising preparing so that a persistence in thermogravimetric analysis (TGA) when standing at 35°C for 30 minutes under a nitrogen atmosphere is 25% or less, and a peel force after 120 seconds in a compression testing machine is 100 gf/cm2 or less.COPYRIGHT: (C)2015,JPO&INPIT【課題】「肌なじみ感」と「浸透感」、「べたつき感」を数値化することによる客観的な評価に基づく皮膚外用剤の製造方法を提供する。【解決手段】窒素雰囲気下で35℃、30分間放置した時の熱重量分析(TGA)における残存率が25%以下、かつ、圧縮試験機における120秒後の剥離力が100gf/cm2以下に調製することを特徴とする皮膚外用剤の製造方法。【選択図】なし