Natural (Formulated with 99% natural ingredients). Bleach free. Dye free. Cleans & deodorizes! Kills odor causing bacteria. Will not harm plumbing or septic systems. Toilet Bowl Cleaner: Ty-D-Bol Natural Brand Toilet Bowl Cleaner kills odor causing bacteria. The angled bottle targets hard to-reach areas, including under the rim, to leave your entire toilet bowl sparkling clean and deodorized. Kills odor causing bacteria. Cleans and deodorizes. Removes tough stains on contact. Destroys toilet bowl rings. Will not harm plumbing or septic systems. This product has not been registered by the United States Environmental Protection Agency. Willett Home Products represents that this product qualifies for exemption from registration under the Federal Insecticide. Fungicide, and Rodenticide Act. www.tydbol.com. Made in USA.