This cleaning product contains probiotic micro-helpers that self activate to provide an active, continuous clean; they keep working long after you've thrown in the towel Probiotic micro-helpers provide 7 days of cleaning power in deep nooks and crannies This USDA Certified Biobased Product (88%) has plant-derived cleaning power and is made with essential oils and other thoughtfully chosen ingredients Use Mrs. Meyer's probiotic cleaning spray on all non-porous surfaces like finished wood and tile floors, countertops, walls, porcelain, sinks and faucets, sealed stone and granite - simply spray, wipe away and let the micro-helpers do the hard work so you don't have to Use Mrs. Meyer's probiotic cleaning spray on all non-porous surfaces like finished wood and tile floors, countertops, walls, porcelain, sinks and faucets, sealed stone and granite - simply spray, wipe away and let the micro-helpers do the hard work so you don't have to