This applicator comprises a tip (22) with a central axis (A-A′) and a product application body (24), in a single piece with the tip (22). The body (24) includes a first curved segment (40) with a local axis moving away from the central axis (A-A′) seen in a plane parallel to an axial median plane of the applicator. The body (24) has a second curved intermediate segment (42) with a local axis approaching the central axis (A-A′), and defining, with the first segment (40), a first hollow area. The body (24) has a third end segment (44) defining, with the second intermediate segment (42), a second hollow area (58) opposite the first hollow area.