"Does what it says on the label"
We have an enamel bath that is 16 years old and is dull and stained from living in a very hard water area. I have tried numerous products but so far none have worked well. Many say not to use on old enamel. I found this in Lakeland and used it with great results. The areas that were stained are now white again and some of the shine has also been restored. It is easy to use though some elbow grease is required! Well worth a try if your old enamel bath needs a shine.