Not selecting a formula based on your skin type
“It is so important to select a foundation that is best suited for your skin type and age,” says Frankel. For example, “if you have oily skin, select a foundation with a demi-matte finish, while dry skin types should opt for a hydrating, glowing finish.”
Silva notes that if you have oily skin “the formulation of the foundation is important because you don’t want to look greasy. If you’re already oily and you want a shiny finish, you still will want coverage, but you don’t want to look wet.” On the other hand, “If you have dry skin and want a radiant finish, you need to make sure you’re using a formulation that is going to give you enough long-wearing moisture.” For a radiant finish, she recommends Always On Radiant Skin Tint ($29).