Choosing the correct foundation is key when it comes to makeup for the big day. Opting for a base that is oil-free or oil-controlling will reduce the amount of moisture interacting with the foundation causing it to slip and slide. Martin recommends Bobbi Brown Cosmetics Skin Foundation Stick (£28, originally £32) for dryer skin types as it's not matte but will stay in place all day. For more oily skin types, she likes Estee Lauder Double Wear Light (£33.50) and MAC Studio Fix Fluid (£26).