Problem to be solved: to provide a dispersion liquid and a dispersing agent capable of preventing separation and settling of a pigment or the like over time in a dispersion containing a pigment or powder.Solution: a pigment or powder dispersing agent comprising a lipid peptide type compound comprising at least one of the compounds represented by the following formula (1) and similar compounds or their pharmaceutically available saltsSurfactant and water12 - alkandiol or 13 - alkanediolFatty acidsContains at least one selected from the group consisting of pigments and powdersDispersion liquid and dispersion agent for the pigment or powder.1(in the expressionR1 represents an aliphatic group of 9 to 23 carbon atomsHydrogen atomOr an alkyl group having 1 to 4 carbon atoms having a branched chain of 1 or 2 carbon atomsR3 represents - (CH2) N-X groups.N represents 1 to 4 numbersAmino groupGuanidino groupConnh2 groupIt represents a fused heterocycle consisting of a five membered or six membered ring or five membered ring and six membered ring capable of having one to three nitrogen atoms.)No selection【課題】顔料又は粉体を含有する分散液において、顔料等の経時の分離・沈降を防止できる分散液並びに分散剤を提供すること。【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からなる顔料又は粉体用分散剤と、界面活性剤と水と、１，２－アルカンジオール又は１，３－アルカンジオールと、脂肪酸と、顔料及び粉体からなる群から選択される少なくとも一種とを含む、分散液及び前記顔料又は粉体用分散剤。【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
