Gram flour

• Take a two teaspoonful of gram flour and add half a teaspoonful of lemon juice in it. 
• Make a paste and then apply over your knee and elbow. 
• Leave it for 15 minutes and then wash with plain water.

Mustard oil

• Massage the oil on your knee and elbow for 10-15 minutes or as long as you feel the oil is absorbed by the skin. 
• Do this regularly, almost daily for lighter elbow and knee as well as for healthy skin.

Coconut oil

• Coconut oil is widely used in skin soothing treatment. It can also be used with lime juice for lighter complexion of elbow and knee. 
• Take a teaspoonful of coconut oil and half a teaspoonful of lime juice. 
• Make a lotion of it and apply over dark areas for 15- 20 minutes. 

Milk & basil leaf

• Make a paste of milk, turmeric powder and basil leaf. 
• Take two spoonful of milk, a pinch of turmeric powder and 2-3 drops of basil leaf. 
• Mix all of them and make a paste. 
• Apply it over your elbow and knee before going to bed. You can wrap it with a cotton cloth to avoid stain on your bed sheet and clothes. 
• Wash it with lukewarm water next morning to get desired results.

Hydrogen peroxide

• Hydrogen peroxide is one the best bleaching agent. It can be used in skin whitening therapy. 
• Dip a cotton ball in hydrogen peroxide and apply it over elbow and knee twice in a week to get fair complexion.

Aloe vera

• Aloe vera helps in discoloration of dark elbow and knee by removing dead skin cells. 
• Simply, break a leaf of aloe vera plant and massage the gel inside the leaf over your elbow and knee. Do it every alternate day for 10-15 minutes. 
• Then rinse it off with lukewarm water.

Baking Soda

• Baking soda is very effective in cleaning the skin and reduces darkening of the skin. Milk bleaches and cleanses the skin
• Take one tablespoon of baking soda and mix it with milk
• Apply this paste on knees and elbows and scrub it using circular motion.
• Repeat the remedy once every two days. Repeat until you notice changes in the color.

Turmeric , Honey And Milk

• Mix some turmeric with milk and honey to make it a smooth paste
• Apply it on the dark areas and leave it there for at least 20 minutes
• Wet your hands and rub it for 2 minutes and then wash it off with water
• Potato which is a good source of skin lightening enzymes may be the solution to your problem. Take a potato slice and rub it to your knees and elbows. Repeat it daily and in a few days darkness of skin will fade and your skin will become fair.

Cucumber

• Take slices of cucumber and rub it gently over your skin for 15 minutes.

Sandalwood and turmeric 

• Take turmeric and gram flour in 1:1 ratio and add rose water to it. 
• Massage this paste to your elbow and knee for making it glowing and white.

Sugar And Olive Oil

• The sugar present in this home remedy work as exfoliate and the olive oil will moisturize the skin.
• Mix equal quantities of olive oil and sugar to make a thick paste
• Apply this mix on to the black knees and elbow
• Rub the skin using this mixture for about five minutes.
• Wash using mild soap and water

Vinegar And Yoghurt

• When used together this home remedy to reduce the dark color of the skin as they cleanse and moisturize the skin.
• Apply a mixture of vinegar and yoghurt on the affected areas and leave it to dry
• When the mixture becomes dry rub the area in circular motion for two minutes and wash.

Bleaching Fruits

• Fruits like lemon, tomato and grapes have bleaching property and help to get rid of black skin when used regularly.
• Apply the juice of any of the bleaching fruits regularly to the skin
• You can use different fruit juices on different days

Pumice Stone

• Rub the dark skin using a pumice stone. This helps to remove the dead cells of the skin.
• Use pumice stone to remove the dead skin while bathing