Our bathroom detergents 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 method is very simple: 1. Keep the dirty part dry, spray the product on the dirty part. 2. Wait for 3-20 minutes, wipe back and forth with a rag or other cleaning tools until clean. Rinse remaining stains with clean water. Effectively removes hard water stains, soap residue and other dirt to give your bathroom a fresh look.