Add some spice to your regimen! Although cinnamon is commonly known for adding spiciness or seasoning food, it has been around for centuries and was thought of by ancient civilizations to be one of the most important spices in the world. Not only is cinnamon great in apple pie, it is now used for several things in the skin care industry; it's antibacterial, antifungal, antimicrobial, anti-inflammatory and acts as a natural astringent. Because of these properties, cinnamon is a commonly recommended ingredient for oily skin types and people suffering from acne.