Replied By Carolyn (Northwest, OH) on 01/13/2009
Yes, use castor oil on your lips! It was a major ingredient in lipsticks for years and years and is perfectly safe. As for it's effect on skin cancers, one case was specifically mentioned in the book, "The Oil that Heals" where a man had a tumor on his ear which disappeared after using castor oil topically daily. I always keep a bottle on hand and never ingest it--just use it topically.