Abstract: A nasal dilator comprises a laminate of vertical layers each consisting of one or more members or components. The laminated layers form a unitary, or single body, truss featuring horizontal regions adapted to engage outer wall tissues of first and second nasal passages and to traverse the bridge of a nose therebetween. When in use the dilator acts to stabilize and/or expand the nasal outer wall tissues and prevent said tissues from drawing inward during breathing. The dilator includes means to direct its resilient properties comprising one or more interior or exterior material separations, or discontinuity of shape of material, formed in at least one region of the truss and extending through at least one layer of the dilator. Said material separation or discontinuity of shape may comprise an opening, relief cut, slit or notch, and which may be configured to separate or vertically protrude, in part, from the truss when the dilator is in use on the nose of a wearer.