Our shower descalers contain disodium EDTA, sodium bicarbonate, lauryl ether 7. It effectively removes stubborn stains from bathtubs, tiles, shower heads, and glass, making them clean and shiny again in minutes. Its use is simple: spray the detergent on the area that needs to be cleaned, then clean it with a towel or sponge or other tool, and finally rinse it off with water. Effectively removes hard water stains, soap residue and other dirt to give your bathroom a fresh look.