MAC Cosmetics Prep + Prime Fix+ is a best-selling, lightweight mist of water packed with vitamins and minerals, infused with a blend of green tea, chamomile, and cucumber to gently soothe and refresh the skin. Gives an instant boost of hydration while delivering a soft sheen to refresh and finish makeup. This holy grail of hydrating mists can be used with other products in near-endless ways – to improve the wear of makeup, or moisturize and soothe tired skin.