Repeat until your headlights lose some of their yellow hue. Rinse your headlights thoroughly and dry. To further protect the lenses, apply a coat of car wax. Use a clean, soft rag to rub the wax on in a circular motion, and buff out after a few minutes.
Sodium bicarbonate (IUPAC name: sodium hydrogen carbonate) is a chemical compound with the formula NaHCO3. It is a salt composed of sodium ions and bicarbonate ions. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder. It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate). The natural mineral form is nahcolite. It is a component of the mineral natron and is found dissolved in many mineral springs.
Antacids such as sodium bicarbonate and calcium carbonate have the greatest neutralizing capacity but are not used for long periods of time due to adverse events. An antacid's onset of neutralizing action (how fast the drug dissolves in gastric acid) varies among different antacids. Sodium bicarbonate and magnesium hydroxide dissolve quickly and provide a rapid buffering effect, while aluminum hydroxide and calcium carbonate dissolve slowly.