Head for dispensing a fluid product and associated fluid product bottle

A dispensing head comprising:

• a manually actuable pusher configured to move between a high position (HP) and a low position (LP) relative to an insert,
• a product dispensing nozzle comprising an elastic material,
• wherein, when moving the pusher from the high position (HP) to the low position (LP), the product dispensing nozzle switches from a closed position in which said product dispensing nozzle is sealed to an open position allowing the dispensing of a product by deformation of said product dispensing nozzle because of a release of a stress exerted by the pusher,
• said insert configured to exert a stress in an opposite direction of the stress exerted by the pusher on the product dispensing nozzle to keep the product dispensing nozzle closed at rest,
• said pusher comprising a stop and said insert comprising at least two deformable lugs, wherein said at least two lugs exert a force on the pusher such that the insert exerts a stress on the product dispensing nozzle in an opposite direction to a stress exerted by the stop on the product dispensing nozzle,
• each of said at least two lugs extending from a body of the insert and each having a distal end surmounted and connected to each other by a connecting element.