As a laundry booster add 1/4 to 1/2 cup to wash cycle to brighten clothes and soften water allowing laundry soaps or detergents to work better. As a stain remover dissolve in hot water to soak and pretreat stains before laundering. Washing Soda has many diverse uses.

sodium carbonate

500 grams in a 500ml clear glass jar with a black metal lid

Washing soda is a natural alkaline cleaning agent, often used as a laundry booster to remove stubborn stains and grease. It can also be used to soften hard water. Please wear gloves when using as it is a strong alkaline.