Totally Green Anti-Fog. G-GLASS¿ Anti-Fog is a patent pending hydrophobic formula made form American grown base oils that now puts the power of nanotechnology into the hands of the consumer. G-GLASS¿Anti Fog¿s nano-sized particles penetrates deep inside the windshield¿s interior side and forms a chemical bond, preventing fog buildup inside the vehicle. G-GLASS¿ Anti-Fog is the ¿GREEN ALTERNATIVE¿ when treating interior glass surfaces¿satisfaction guaranteed! G-GLASS¿ bottles are made from 100% recycled milk jugs and the labels are printed using soy inks on biodegradable paper.