The invention relates to an insect repellent composition comprising: - an insect repellent component comprising a fatty acid having between 9 and 21 carbon atoms; a non-aqueous solvent; less than 1% by weight of water. L'invention concerne une composition insectifuge comprenant : - un composant insectifuge comprenant un acide gras présentant entre 9 et 21 atomes de carbone ; - un solvant non aqueux ; - moins de 1% en poids d'eau.