― Last year I purchased the full size of Benefit's Stay don't Stray because I loved the travel size I received in a kit. The full size retails for $26 (Sephora) and comes in a tube with a pump. ∙ Ewww this so gross, ewwwwww. This is the reason when you pump it out so much water comes out with the cream portion of the primer... it seperates inside the tube!!!!! There is no ball in the tube so when you shake it you won't know for sure if it is being mixed properly. The main problem that a lot [...].