I already knew this glass cleaner, and I recently discovered that I could buy it from Amazon because it is cheaper than commercially (in the store near my home I got a single spray for that price!) I do not like using too much household products as they can sometimes be harmful to health. However, I still used sparingly and I appreciate this product (like most products of this brand): it really cleans glass surfaces, has little odor, it is no coloring or allergen and is ecological.