Green Shield® Organic Toilet Bowl Cleaner. Chlorine bleach & Phosphorous free. USDA organic. Removes iron deposits, lime scale & toilet rings! Welcome to Greenology! Green Shield Organic toilet bowl cleaner is a powerful blend of organic acid-based chelating agents that remove lime scale, iron deposits, and toilet ring. This product is made with the utmost concern and consideration for people, pets & our precious planet. Conquers tough toilet stains & odors. Removes lime scale & mineral deposits. Septic system safe. Non-toxic & hypo-allergenic. Not tested on animals. Chlorine bleach & phosphorous free. Questions 1-877-GREEN 50 (473-3650) M-F 9am-5pm EST. Certified organic by C.O.I. www.greenologyproducts.com