The cosmetic composition of the present invention is characterized by containing an anionic polymer dispersant, an acid having a molecular weight of 300 or less and iron oxide particles, wherein a viscosity of the cosmetic is 15 mPa·s or less, and an average particle diameter of the iron oxide particles in the cosmetic is 100 nm or less. The above cosmetic composition is excellent in an aging stability and can be used by charging in a liquid cosmetic applicator.