Do you have yellowing on the underneath toilet lid?

should be wearing rubber gloves to clean toilet no matter what you are using.KRUD KUTTER is chemical too & should not inhale this either. PREVENTION STATEMENT : P264 Wash hands thoroughly after handling P271 Use in well ventilated areas P280 Wear protective gloves/protective clothing/eye protection/ face protection RESPONSE STATEMENT: P302 + P352 IF ON SKIN: Wash with plenty of soap and water. P305 + P351 IF IN EYES : Rinse cautionously with water for several minutes HEALTH EFFECTS OR RISKS FROM EXPOSURE: ACUTE: INHALATION: Mists and vapors may be mildly irritating to the throat and respiratory tract. SKIN: May cause irritation with pain and stinging, especially if the skin is abraded. EYES: Produces irritation, characterized by a burning sensation, redness, tearing, INGESTION: Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. Krud Kutter(on Prop 65 list) don't know how it's considered food safe??? They won't even provide a list of ingredients!?.This means they list Proprietary ingredients 99% of each bottle never stating what they are KK32Item Weight2.1 poundsProduct Dimensions5.1 x 3.2 x 11.5 inchesCalifornia residents Proposition 65 warningItem model numberKK32SizeSingle PackColor_MaterialLiquidItem Package Quantity1CertificationRemoves even the toughest stainsIncluded Componentsautomotive engine degreasers; Proposition 65, officially the Safe Drinking Water and Toxic Enforcement Act of 1986, is a law that requires warnings be provided to California consumers when they might be exposed to chemicals identified by California as causing cancer or reproductive toxicity. The warnings are intended to help california consumers make informed decisions about their exposures to these chemicals from the products they use. The California Office of Environmental Health Hazard Assessment (OEHHA) administers the Proposition 65 program and publishes the listed chemicals, which includes more that 850 chemicals. In August 2016, OEHHA adopted new regulations, effective on August 30, 2018, which change the information required in Proposition 65 warnings.

We are providing the following warning for products linked to this page:

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.*EPA/Safer Choice recognition does not constitute endorsement of this product. The Safer Choice logo signifies that the product’s formula, as Krud Kutter Inc. has represented it to the EPA, contains ingredients with more positive human health and environmental characteristics than conventional products of the same type. EPA/Safer Choice relies solely on Krud Kutter Inc., its integrity and good faith, for information on the product’s composition, ingredients and attributes. EPA/Safer Choice has not independently identified, that is, via chemical analysis, the ingredients in the product formula, nor evaluated any of Krud Kutter Inc.’s non-ingredient claims. EPA/Safer Choice provides its evaluation only as to the product’s human health and environmental characteristics, as specified in the Standard and based on currently available information and scientific understanding

I used it on my kitchen cabinets and all my hard rock maple furniture. Then used furniture restore. What a difference. Like new. Plus a lot of other uses.