An applicator cap comprising: - a gripping sleeve capable of being removably mounted on a neck of a container intended to contain a cosmetic composition to be applied, - an application rod comprising a rod body adapted to pass through the neck of the container and to engage at least partially into the container, wherein said rod body is provided with two opposite ends (32, 33) including an upper end and a lower end protruding from the gripping sleeve and supporting an application head, wherein the application rod is slidably movable inside a central orifice provided inside the gripping sleeve, between a retracted position and a deployed position; - a thrust member coupled to the application rod to move the application rod from its retracted position to its deployed position under the effect of a thrust exerted on an upper head of the thrust member; and - an elastic return member urging the application rod towards its retracted position, wherein the elastic return member is interposed between the upper head of the thrust member and an internal shoulder provided inside the central orifice of the gripping sleeve; said applicator cap being characterized in that: - the thrust member comprises a lower rod attached to the upper head and which extends inside the central orifice of the gripping sleeve by passing through the internal shoulder in the retracted position, such that said lower rod has a free termination arranged below the internal shoulder while the upper head is arranged above the internal shoulder; and - the upper end of the rod body supports a coupling piece which, on the one hand, is widened compared to the rod body to be able to bear on said neck of the container and, on the other hand, is force-coupled, by interlocking, to the free termination of the lower rod of the thrust member. - a gripping sleeve capable of being removably mounted on a neck of a container intended to contain a cosmetic composition to be applied, - an application rod comprising a rod body adapted to pass through the neck of the container and to engage at least partially into the container, wherein said rod body is provided with two opposite ends (32, 33) including an upper end and a lower end protruding from the gripping sleeve and supporting an application head, wherein the application rod is slidably movable inside a central orifice provided inside the gripping sleeve, between a retracted position and a deployed position; - a thrust member coupled to the application rod to move the application rod from its retracted position to its deployed position under the effect of a thrust exerted on an upper head of the thrust member; and - an elastic return member urging the application rod towards its retracted position, wherein the elastic return member is interposed between the upper head of the thrust member and an internal shoulder provided inside the central orifice of the gripping sleeve; - the thrust member comprises a lower rod attached to the upper head and which extends inside the central orifice of the gripping sleeve by passing through the internal shoulder in the retracted position, such that said lower rod has a free termination arranged below the internal shoulder while the upper head is arranged above the internal shoulder; and - the upper end of the rod body supports a coupling piece which, on the one hand, is widened compared to the rod body to be able to bear on said neck of the container and, on the other hand, is force-coupled, by interlocking, to the free termination of the lower rod of the thrust member.