How long does it take lemon juice to work on my knees?!

Question: i am trying to lighten them

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Answers: i am trying to lighten them

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I used lemon juice on my face 3-4 times a week in the beginning for a month. Now its only 2 times a week. It works, but it is ongoing.

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if your using lemon juice to lighten your skin or hair, you have to be in the sun for it to work.

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