Only this product makes your clothes really white: removes yellowness in 2 minutes

Take a container and pour three tablespoons of baking soda, three of hydrogen peroxide and three of soap powder. Mix and create a mixture with a grainy consistency. Next, take a container and fill it with  boiling water. 

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Now you just have to soak your yellowed clothes for at least  60 minutes. When an hour has passed, do the classic wash and you will see that your clothes will be very white and very scented. In this way you will have solved a big problem, saving a lot of money and also taking care of the environment and your health.