boosts the power of your laundry detergent by removing hard water minerals which trap dirt into fabric fibers. Plus, it removes detergents by removing hard water minerals which trap dirt into fabric fibers. Plus, it removes detergent build-up and soap scum that cause clothing to appear dull and faded. That's why, when you add Calgon Water Softener along with detergent, whites look really white and colors are brighter...without bleach. Boosts the power of your laundry detergent For whiter white & brightens colors Contains no phosphorusCalgon Water Softener, 32 oz Bottle, Laundry Detergent Booster: Add Calgon water softener to your laundry wash for whiter, brighter clothesMaximum lime scale protectionReduce the risk of breakdown and protect your investmentGood for 16 laundry loadsCalgon quality product is ideal for doing delicates and other laundry in your washerCalgon laundry detergent booster can be added to a dishwasherRemoves minerals and residues found in hard waterCap can be used to measure amount needed