This simple home remedy can be done and used before going to sleep in the night.
Mix half a teaspoon of cinnamon, half a teaspoon of salt a tablespoon of petroleum jelly (mixture of hydrocarbons, used as a lubricant or ointment). Now take the mixture by using your finger and then rub all over the lips, until you feel them smooth on the lips.
Leave it on lips during the night.
Follow this DIY remedy for a month and you will see visible result on your plumped lips.