You shouldn't use a spray product in a small, enclosed space such as a car, especially if you're sharing that space with another person, so keep The Colorescience Sunforgettable Total Protection Brush-On Shield SPF 50, $69, on your radar. It's a tinted powder SPF 50 formula that is great even for acne-prone and sensitive skin, it comes in 4 shades, and with a built-in, fluffy brush to evenly disperse both the pigment and protection.
