Christina Aguilera made Sexy and Nude Perfume with Polycarbonate Plastic Cylinder(Not Bottle, nor Glass), as Polycarbonate is much better than Glass in Gloss or Weight. Polycarbonate Plastic(PC) is used for SunGlass Lenz and Space Helmet for Austronauts in Heaven's Space. Now SABIC Innovative Plastics(Old GE Plastics) are trying to replace all glass window shields of Automobiles with PC. Then all glass will be gone away and will be replaces with Polycarbonate, Engineering Plastics, which was developed by GE for the Space Helmet of Austronaut Mr. Amstrong.