A fluid dispenser including a body (6) receiving a dispenser member (3) connected to a reservoir (1) and to a fluid dispenser orifice (73), an actuator member (4) for actuating the dispenser member (3) and a module (5) comprising at least one source of radiation (51), such as a LED, the body (6) having a module housing (65) wherein the module (5) is received. The dispenser also includes a dispenser and diffuser head (7) mounted on the body (6) and forming an application wall (74) into which the fluid dispenser orifice (73) opens out for applying the fluid coming from the dispenser orifice (73) onto the skin. The module (5) is integral with the dispenser and diffuser head (7), thus forming together an integral unit (U) which is received on and within the body (6).