PROBLEM TO BE SOLVED: To provide a skin lotion in which content components are carefully selected so as to increase water holding capacity and moisture retention potential without damaging the power included in water (power of natural water) though having alkaline, and which exhibits excellent functions as a fundamental skin lotion with few materials.SOLUTION: The fundamental skin lotion is obtained by mixing alkaline hot spring water, phenoxyethanol, collagen, elastin, a placental extract, pentylene glycol, glycerin and butylene glycol, and the liquid obtained by mixing them is alkaline.