A plastic container product, particularly produced according to a blow-moulding, filling and sealing method, includes a container body having a container content and a head part (12) connected to the container body. The head part defines a removal region (14) closed by a head membrane (16) with joint seam (38) that passes through a surface (20) spanned by the head membrane (16) and that separates at least two penetrable regions (22, 24) on the free front side (26) of the head membrane (16), for the removal of the content. The joint seam (38), observed from the free front side (26) of the head membrane (16), has a seam line (36) that at least partially deviates from an imaginary straight line (32), extends inside the surface (20), is longer than the straight line (32) and at least partially encompasses the penetrable regions (22, 24).