Klineks Carpet Shampoo does not contain paraben and it covers your carpets soft texture while cleaning. It is sold as 1lt, 5lt, 10lt, 20 lt, 30 lt and 60 lt packages. You can use it safely even your silk carpets. It affects blood an ink stains and removes pen stains. Also you can use to clean all the tough stains like heavy oil, tea, strawberry, coffee. The formula is concentrated. According to the stain condition, it should be used 1/50 or 1/120 dilution ratio.