Arm & Hammer Super Washing Soda gets your whole wash cleaner, whiter and fresher, without the damage bleaches can cause. Super Washing Soda also makes a great all-around household cleaner. Washing Soda is a natural detergent power booster and freshener. It works in two ways: It increases your detergent's cleaning power to get out ground-in dirt and stains and cut through greasy soils. It helps neutralize and eliminate odors, not cover them up with perfumes.