If you have a dry, rough or dark skin around your elbows and knees then all you need is a lemon, you can also use the left over lemon so don’t throw them away instead store them in the fridge as they can be used for many other beauty uses.
Cut a lemon in half and apply it directly on the area, the acidity in lemon exfoliates the area to remove the dead/ dry skin and also the lightening properties helps lighten the dark area, leave it for about 30 mins and then rinse off. Apply coconut oil or olive oil to the area instead of a lotion so that oil absorbs into the skin keeping it soft and smooth.