Dispensing head for fluid product dispenser and associated dispenser

A dispensing head for a fluid product configured to be mounted on a fluid product reservoir of a dispenser, the dispensing head comprising:

• a pump actuator capable of moving along a main longitudinal axis from a rest position to a product dispensing position, and vice versa;
• and
• a locking system for the actuator allowing locking and/or unlocking of the actuator, the locking system comprising:
• an actuating means capable of moving in a translational movement in a plane perpendicular to the main axis from a locking position of the actuator to an unlocking position of the actuator, and vice versa;
• and
• a ring capable of moving in a rotational movement about the main axis,
• wherein the translational movement of the actuating means driving the rotational movement of the ring so that in an unlocked position at least one protuberance of the actuator is aligned with a slot of the ring so that the actuator can move from the rest position to the product dispensing position and that in the locking position the protuberance is in abutment with an upper edge of the ring preventing the actuator from moving from the rest position to the product dispensing position.