Simple Green Stone Cleaner provides a soft, streak-free shine that makes natural and engineered stone surfaces look new again This formula is safe for use in kitchens Use it daily on marble, granite, quartz, limestone, ceramic, porcelain, engineered stone, Corian, Silestone, and more For best results use in conjunction with Simple Green Stone Polish for the ultimate in stone care No sticky or greasy residue & cleans without harsh chemicals Non-flammable and phosphate-free formula