How To Lighten Your Knuckles And Toes by How To Lighten Your Knuckles And ToesTo lighten your knuckles, take a slice of potato and rub it fast on your knuckles for about 1-2 minutes. After rubbing your knuckles with potato, make a mixture of baking soda and water and apply this paste on the affected area and leave it to dry for 4-5 minutes. As it get dires up, scrub up the dried mixture fast and wash off your knuckles with warm water. Repeat this beauty tip everyday until you get the desired results ! :)