Bar Keeper's Friend Toilet Bowl Cleaner is formulated to tackle the toughest toilet stains, including hard water buildup, mineral deposits, rust stains, and toilet bowl rings. The extra-thick formula clings under the rim where buildup forms most and begins dissolving stains on contact with no excessive scrubbing required. For ongoing prevention between deep cleans, pair it with Bar Keeper's Friend EZ-Flush.

The formula contains hydrochloric acid, the same active ingredient found in professional-grade toilet bowl cleaners. It's safe for porcelain and begins dissolving mineral deposits, hard water stains, and rust stains on contact, which is why the results are thorough without requiring excessive scrubbing.

Yes. Our Toilet Bowl Cleaner tackles hard water stains, rust stains and rings, and mineral deposits, even the stubborn ones that have been there for years. We know care is a long-term practice, so whether your toilet's seen years of hard water buildup, our Toilet Bowl Cleanswer will clean and detodorize to get the job done.