Lifestyle Desk. Friends, many people look very beautiful and attractive, but sometimes they are defeated due to the blackness seen on their neck. People use expensive expensive beauty products to remove the blackness of the neck, but still the blackness of the neck is not removed. Today we are going to tell you a home remedy to remove the blackness of the neck, which will prove to be effective for you. Friends, to remove the blackness of the neck, remove the juice of one potato and mix one lemon juice in it and apply it on the neck and leave it for about 20 minutes. After 20 minutes wash the neck with clean water, using this recipe 3 times a week, the blackness of the neck will disappear in a few days.