Abstract: A tamper-evident end closure for dispensers, including a hermetically sea base, a rotor having a normally occurring unrestrained non-flat shape, and a rotatable connection between the rotor and the base to hold the rotor on the base in a substantially flat condition so it can rotate. The rotatable connection is achieved by employing an annular attachment ring, formed on the rotor snap-fit into an annular groove molded into the base. The annular attachment ring is connected to the rotor by a frangible web, which will break or tear when an attempt is made to separate the rotor from the base. Because the rotor is formed with a normally occurring non-flat shape, tearing or breaking of the frangible web will allow a portion of the rotor, normally held by the attachment ring, to spring or bend toward its natural shape. This unrestrained portion provides striking evidence of the tampering attempt.