BETHESDA, Md.--(BUSINESS WIRE)--REGENERX BIOPHARMACEUTICALS, INC. (AMEX:RGN) (www.regenerx.com) reported today that a patent related to actin-sequestering (regulating) peptides that may have potential benefits in preventing or reversing skin aging has been issued in Australia. The patent, which expires in 2021, identifies numerous compositions, uses and processes covered by the claims. Similar and related patent applications have been submitted throughout the world.