I too first started to notice this condition when i was smoking weed. I dont believe that weed triggers this at all (otherwise millions would suffer from it) but i do recall the smokign making my lips drier. The reply from Andres again leaves hope that this condition can be resolved through proper nutrition and liver cleansing. I am tempted to buy one of the books just to check out what he has to say. God knows how much money i have spent on lip moisturizers and balms already, a few more on his book wouldnt hurt. If you are at all interested in following my posts, i have started a program to help my condition with vitamin supplements. It may work, it may not. It sounds like Andres knows what he is talking about; he broke down the lips right down to the intenstines they are matched with. If my vitamin program fails i will definitley look in to Liver Cleansing and his book. If i were you i would stay in contact with him and grab as much information on this topic off him as possible. Let me know if you happen to have any success. Keep us posted.