****** - Verified Buyer
4.5
I have 100-year-old kitchen porcelain sink. And my tub and sink in the bathroom is 100 years old. Comet leaves a green tinge on old porcelain. And that's what I had and couldn't figure out what it was. I got some pink stuff ( that's the name if the product) I Got rid of the green tint . Then I figured I'd try bon ami. Works great and there's no dyes in it. If I want to whiten it I just use Mrs Stewart's bluing. a really weak solution and that makes it bright white again. Highly recommend it for old porcelain sinks and tubs