Ie quartz? We use cheap vodka in a spray bottle with a microfiber cloth. Ph neutral, no residue, antibacterial.

Do you mean cultured marble?

Picture please.

Yes, it is cultured marble. I have always used a mixture of 50/50 alcohol and water. Thought there might be something better.

I've always used Comet spray bathroom cleaner or a vinegar/water solution on cultured marble.

This site suggests bleach or hydrogen peroxide to remove the stains: https://stoneadviser.com/how-to-clean-cultured-marble-that-has-yellowed/