The Bobbi Brown Skin Long-Wear Fluid Powder Foundation (£28) is a liquid foundation and powder in one. And yes, you read that correctly. The hybrid formula starts as a fluid and then dries down as a powder with a soft-matte finish, which means you actually don't need to set this with an additional loose or pressed powder. And because it of the powder in the formula, not only is it non-acnegenic (so it's good if you're prone to spots), it's also sweat and humidity resistant, making it a great foundation to invest in as we look forward to the warmer months.