An object of the present invention is to provide a solid base material for external use on skin which can be used for a stick-like base material or the like and has excellent thermal stability and high breaking strength. A lipid peptide type compound comprising at least one of a compound represented by the following formula (1) and an analog thereof or a pharmaceutically usable salt thereof, a surfactant, water, and carbon atoms of 8 A solid base material for external use containing 30 to 30 saturated or unsaturated monohydric alcohols. (Wherein R1 represents an aliphatic group having 9 to 23 carbon atoms, and R2 represents a hydrogen atom or a branched chain having 1 or 2 carbon atoms and having 1 to 4 carbon atoms) Represents an alkyl group, R3 represents a-(CH2) n-X group, n represents a number of 1 to 4, and X has an amino group, a guanidino group, a -CONH2 group, or 1 to 3 nitrogen atoms Represents a 5- or 6-membered ring or a condensed heterocyclic ring composed of a 5-membered ring and a 6-membered ring.) [Selection] None【課題】スティック状の基材等に使用できる、熱安定性に優れ破断強度が高い皮膚外用固形基材を提供すること。【解決手段】下記式（１）で表される化合物及びその類似化合物又はそれらの薬学的に使用可能な塩のうちの少なくとも一種からなる脂質ペプチド型化合物と界面活性剤と水と炭素原子数８乃至３０の飽和又は不飽和の一価のアルコールとを含む皮膚外用固形基材。【化１】（式中、Ｒ１は炭素原子数９乃至２３の脂肪族基を表し、Ｒ２は水素原子、又は炭素原子数１若しくは２の分枝鎖を有し得る炭素原子数１乃至４のアルキル基を表し、Ｒ３は－（ＣＨ２）ｎ－Ｘ基を表し、ｎは１乃至４の数を表し、Ｘはアミノ基、グアニジノ基、－ＣＯＮＨ２基、又は窒素原子を１乃至３個有し得る５員環若しくは６員環又は５員環と６員環から構成される縮合複素環を表す。）【選択図】なし
