Stila Cosmetics is one of those brands you stumble upon at Sephora and become instantly devoted to. They also make your favorite eyeliner by a very wide margin. So, if you’re a Stila loyalist, or if you’ve been wanting to try them out, use the code BCA to get 40% off select items, in honor of Breast Cancer Awareness Month. Plus, all of the proceeds go to The Foundation for Living Beauty.