I have a five year old solid surface white sink that you can use scrubbers on to remove stains and return it to its original white color. But that is a substantial amount of work and occasionally someone will leave a tomato product in the sink, which is a very hard stain to remove. I found that if I spray the sink with this foam cleanser at the end of every day, all stains are removed by morning and the sink is absolutely sparkling white. No scrubbing needed at all. And while my family objects to the smell of bleach cleaners, this foam cleaner does not have an objectionable odor. Plus it goes a long way, with one bottle lasting about three months, is very reasonably priced and frequently is on sale at many local stores.