Windex

Windex is owned by SC Johnson and is the most recognized glass cleaner brand in North America. The Original formula has contained ammonium hydroxide ("ammonia") since launch and remains the brand's flagship despite the introduction of ammonia-free variants. For automotive use, Windex Original is widely available and inexpensive but the ammonia content is a real consideration: ammonia degrades aftermarket window tint adhesives over time and can attack hydrophobic glass coatings. Where the rubric distinguishes between ammonia and ammonia-free formulas, Windex is the ammonia category reference.