Blush, also called blusher or rouge, is a cosmetic product applied to the cheeks. Typically blush is found in shades of pink and red, but also can be found in oranges, browns, and non-traditional colors such as purples and blues. The name “blush” comes from the term blushing, referring to the sudden redness of the cheeks when there is increased blood flow to the area – like when someone is embarrassed.