A method for producing at least one structure (13) by laser action on at least one wall part (11) of a container wall (29) of a product, preferably a plastics container product (1) produced by a blow-molding, filling and sealing method. The particular structure (13) is introduced by the laser action, at least with the laser power, the period of action of the laser, the type of plastics material and the type of desired structure being taken into account, as a linear depression (17) in the one wall part (11). The depression (17) is delimited at the edge and in a manner following the profile of the linear depression (17) by in each case one elevation (27) brought about under the influence of the intrinsic material stress of the plastics material.