Fluid product distribution device comprising a reservoir (10), a distribution member (20), slidably mounted in said reservoir (10), a distribution head (30) provided with a distribution orifice (31), said reservoir (10) being movable relative to said dispensing head (30) to move said actuating member (20) in said reservoir (10) and thus distribute fluid product through said dispensing orifice (31), a member actuator (60) slidably mounted in said dispensing head (30) and cooperating with said reservoir, and a lateral actuation system cooperating with said actuator (60), in which: - said actuator (60 ) comprises a cylindrical body (65) and at least one flexible tab (61) provided with at least one radial projection (62), each flexible tab (61) extending axially in said cylindrical body (65) and being radially deformable between an undistorted position, in which e said at least one radial projection (62) projects radially out of said cylindrical body (65), and a deformed position, in which said at least one radial projection (62) does not project radially out of said cylindrical body (65), - Said lateral actuation system comprises two lateral levers (35, 36), diametrically opposite, deformable and / or displaceable laterally relative to said dispensing head (30), at least one flexible spacer (37) connecting said two lateral levers (35, 36), said at least one flexible spacer (37) cooperating with a radial projection (62) of said actuating member (60) and being deformed axially during actuation to axially move said actuating member (60 ) relative to said dispensing head (30). Dispositif de distribution de produit fluide comportant un réservoir (10), un organe de distribution (20), monté coulissant dans ledit réservoir (10), une tête de distribution (30) pourvue d'un orifice de distribution (31), ledit réservoir (10) étant déplaçable par rapport à ladite tête de distribution (30) pour déplacer ledit organe d'actionnement (20) dans ledit réservoir (10) et ainsi distrib
