METRO-X Surgical Glue Replaces Sutures, Stitches & Staples in Surgery. METRO-X dissolves & vanishes leaving no trace of scaring from most cuts. METRO-X is Perfect for Internal Surgery and a Must for Facial Surgery. METRO-X contains a topical anesthetic which instantly relieves pain of an open cut or wound. METRO-X shrinks when exposed to U.V. light, closing the cut or wound without the use of stitches or staples. METRO-X slowly dissolves and vanishes leaving no trace of scaring from most cuts.