The invention concerns a packaging device (10) for a cosmetic product (P), especially for a solid or pasty cosmetic product, having a base (20), an intermediate part (30) intended to carry the product (P) and a lid (40), the intermediate part (30) being secured to the base (20) and the lid (40) being mounted hinged on the intermediate part (30) so that said lid (40) occupies two positions, a first position, called the closed position of the device where the base (20) and the lid (40) together define a substantially closed space, and a second position, called the opened position of the device where the lid (40) is retracted inside the base (20), wherein the lid (40) is configured to be blocked in an opened position—reciprocally in a closed position—by blocking means having at least one protrusion (39) of matter protruding from the intermediate part (30).