S1 is a neutral shampoo that contains the highest-quality formula we have ever developed, the world’s first SiO enzyme-based shampoo for detailers (patent no. 14730984.3), which deeply cleanses, protects and prolongs the life of previously applied coating. S1 removes even the most stubborn organic dirt and, thanks to the enzymes that can act several times on the same molecules – dirt substratum (e.g. a layer of soil), a small amount of S1 guarantees an excellent washing action and thorough cleaning*, making the protective layers applied previously, or still to be applied, last longer. Its unique formula, with the finest raw materials available, adheres to the surface, thus protecting it from alkaline agents, “bird drop” and creating excellent beading and sheeting effects lasting up to 4 months.