Overview Chamomile blue oil is also known as German chamomile. Chamomile is widely known for its calming properties, whether in tea form or in essential oil form. Chamomile blue oil has a high content of azulene which brings out the blue colour. Common Uses Chamomile blue oil is most commonly used in skincare products and for aromatherapy purposes. Not only does it have a pleasant smell, it also has the nearly instant calming effect on both skin and nerves. Recommended Storage The ideal storage of essential oils is to keep it refrigerated, as the fridge keeps the components that make up the oils at their optimal levels. If you don't have space in the fridge, you can keep it in a cool, dark place. Essential oils have a shelf life of one to five years. You should however replace essential oils after three years to gain the most benefits out of the essential oils.