Mix one teaspoon of milk cream with few drops of lemon juice.keep the mixture in the fridge for an hour then apply before going into the bed ,not only on lips but also around the lips.

Mix glycerin with rose water in equal proportion .apply the mixture on whole face and lips before going into the bed.

Mix one teaspoon honey with few drops of glycerin.apply it on lips for 15 mins then wash and apply only glycerin and leave it overnite.