Homemade products have a lower cleaning action and above all are less dedicated to the multiplicity of materials that we can find on a car. In fact, these products often use unrefined ammonia or alcohol: substances that are particularly harmful to specific materials present on the outside and especially on the inside. interior of a car. Furthermore, Glass Cleaner & Degreaser gives an oleophobic effect which reduces the formation of fingerprints on treated surfaces, making it particularly suitable for cleaning touch screens.