The 39-year-old actress, who never fails to look great, opened up about some of her must-have items, reported Contactmusic.
"I fill my Saint Laurent Du Jour bag with a Chia bar, Extra gum, and three different lipsticks. Brightly coloured Nars lipsticks are my beauty go-to's," she said.
Witherspoon does not just rely on lipstick to switch up her looks however, she loves to try different eye make-up too, and one product in particular helps make her blue eyes pop.
"Another beauty must: I always use, Tom Ford eyeliner in Metallic Mink," she added.