An applicator for applying a composition to eyelashes and/or eyebrows may include: a stem; and an applicator member at one end of the stem. The applicator member may include: a support that is made of plastics material, and that is elongate along a longitudinal axis. The support may be connected at a proximal end to the stem, and may include a free distal end. The support may include only two branches that extend along the longitudinal axis of the support. The branches may form a single opening therebetween, and together may define a greatest width of the support. At least one row of applicator elements may be disposed on one of the branches. The at least one row may include applicator elements which, over at least half of their length, extend other than over the opening.