A solid base material for external use on skin usable as a stick-shaped base material or similar, and has excellent thermal stability and a breaking strength sufficiently high, including a lipid peptide compound including at least one of compounds of formula (1)wherein R1 is a C9-23 aliphatic group, R2 is a hydrogen atom or a C1-4 alkyl group optionally having a C1 or C2 branched chain, and R3 is a —(CH2)n—X group, wherein n is a number from 1 to 4, and X is amino group, guanidino group, -CONH2 group, or a 5-membered ring or 6-membered ring optionally having one to three nitrogen atoms or a fused heterocyclic ring composed of the 5- and 6-membered ring, and analogue compound thereof, or pharmacologically usable salts thereof, and a surfactant, water, and at least one saturated or unsaturated monohydric alcohol having a carbon atom number of 8 to 30.
