Avène Thermal Spring Water Instead of a light mist, this facial spray truly saturates the skin with water, making it an essential step postmoisturiser. Gwyneth Paltrow is one of the celebrity fans of this product, which she uses to cool down on a hot day and set her makeup. We like to keep a bottle at the desk for a midday pick-me-up — it wakes us up without any extra caffeine. Avène Thermal Spring Water ($18) Avène Thermal Spring Water $18 from express.google.com Buy Now