The skin on the knees and elbows is thin. That is why the skin in those areas darkens quickly due to sun exposure. This causes hyperpigmentation.

Many people do manicure and pedicure for beautiful hands and feet. But the pigmentation on the knees, ankles, and elbows is not given much attention. This causes the skin in those areas to become rough and black.

The bleaching properties of lemon act as a natural antioxidant. It exfoliates and brightens the skin. Sprinkle some salt on a lemon cut in half and rub it on your elbows and knees for ten minutes and then wash it off with lukewarm water. Doing this often will give good results.

Mix three drops of white vinegar in two spoons of curd and apply on elbows and knees. It is okay to wash off the nail with warm water.

Add four to five drops of olive oil to one spoon of sugar and mix well. Scrub this mixture on the blackened area for 15 minutes and wash it off with warm water.