Glisten Dishwasher Detergent Booster and Freshener is formulated with natural ingredients that deliver lasting freshness to your dishwasher and whole kitchen. Use regularly between cycles to eliminate foul dishwasher smells caused by food and buildup. Glisten Detergent Booster + Freshener also works with your detergent during the main wash cycle to remove hard water spots and stains from dishes and glassware. The multi-action formula keeps your dishwasher smelling fresh and your dishes and glassware sparkling clean.