I've tried just about every lip plumper their is on the market ( lip venom, fat lips, lip injection, Sovage lip explosion, city lips, Stung lip enhancer, and Hydroderm) and all have had the same so-so results....
There are alot of guides on e-bay written about lip plumpers , and how they dont work. If you have razor thin lips nothing but surgery or an injection is going to change that, buying a lip balm with cinemmon...