"The product I always have with me is a red lipstick. You can wear it so many ways. In the day, I dab it on and wear it as a stain, and night I'll wear it intense and defined. Sometimes I like to blur the edges a bit so it's an undone, effortless look. It's a classic so if you're in a pinch as to what to do for your makeup look but just want to feel beautiful, you can never go wrong with a red lip," Rosie Huntington-Whiteley told Glamour.