A mosquito-repelling agent which is gentle to human and environment and
safe, and has an excellent mosquito-repelling effect almost equal to the
effect of DEET and also an excellent persistency of the effect. The
mosquito-repelling agent comprises a mixture of isomenthone, linalool,
geraniol, citral and citronellol as an effective ingredient for a
mosquito-repelling effect, which may be contained in a fragrant
composition.