Here are some reasons your skin will thank you for an external coffee boost:
It's a rich source of anti-oxidants: The environment is full of free radicals (pollution particles, etc.) that wreak havoc on the skin. However, loading up skin with anti-oxidants in coffee protects it and bolsters the skin's natural defenses. In fact, a study showed that coffee bean extracts can be responsible for skin cell energy preservation due to its free-radical properties."