<;P>;PROBLEM TO BE SOLVED: To provide a new useful hair grower high in hair growing effect and safety. <;P>;SOLUTION: The hair grower comprises (A) one or more selected from the group consisting of glycyrrhizinic acid, glycyrrhetinic acid, their derivatives and salts, and (B) a thermolysin decomposition product of soybean protein or a thermolysin-like protease decomposition product of the soybean protein, and has hair growing activity equivalent to that of the thermolysin decomposition product. <;P>;COPYRIGHT: (C)2009,JPO&INPIT