Lemon
Yogurt is a good snack, but everyone knows this but sour curd can be a good skin toner. Very few people know this. Make a paste by adding one teaspoon vinegar and gram flour in the sour curd and rub it on your elbows and knees and keep it for 15 minutes. After that wash it with hot water. Do this experiment 2 to 3 times a week.
Baking Soda
Baking soda works like a cleanser. It also removes the pigmentation and the affected limb gets cleared. Mix baking soda with milk and make a paste. Now rub this paste on the elbows and knees and clean it with water after 10 minutes. Within two months of doing this experiment twice a week, you will get rid of the blackness of knees and elbows.
Aloe Vera
Aloe vera is considered to be the best for skin. It is very helpful in repairing old cells of skin and making new cells. Take aloe vera gel and rub it well on knee and elbow black spots. Leave it for 20 minutes and wash it later with cold water.
Coconut Oil
Coconut oil is not beneficial for our hair. By using it you can also get rid of your elbow and knee pain. It contains a high amount of vitamin E, which maintains moisture in your skin. Rub coconut oil in your elbow and knee every night. This will soon remove their blackout.
potato
If you do not want to remove elbows and knees, then potatoes can prove to be a good remedy. For this, you rub the potato pieces on the affected area. Apart from this, you can also use potato paste. Grind the potatoes on knees and elbows and wash them with hot water after letting them stay for 20 minutes. Doing this will remove the dullness of your knees and elbows in a few days.