Die hard fans have made the original Lip Venom the 1 lip plumper but for those lip plumping junkies who want all the fullness but don't want the sting, there is Du Wop Lip Venom 2nd Sin. All the latest lip enhancement technology plus Du Wop's new breakthrough ingredients conspire to bring you wickedly plump lips. Du Wop do not use animal testing on any of their products.