The introduction of a multitude of stain treatments has led to some confusion. A stain treatment is nothing more than that –A STAIN TREATMENT. The base product is still made with one of the four fibers. The branded stain treatments are well recognized because of the great amount of advertising done by the fiber companies. There is not much difference in one treatment or another. All are basically the same. Carpet will stain under certain conditions- no carpet is stain proof.