Dark knees and elbows bothering you? A lemon juice, baking soda paste works wonders for lightening elbow and knee skin by bleaching it. Aloe and honey-based masks or sugar scrubs are also great choices as they exfoliate the skin on your knees and elbows, giving it a radiant look. You could also use turmeric or gram flour paste to brighten the dull skin and leave it glowing.

the natural remedies for dark knees and elbows don't have limitations of use; however, those over-the-counter remedies need to be used with caution. It would be best to stick with natural remedies to make sure it's safe as well as effective enough.