Essential oils are wonderfully powerful healing tools that should be handled with care and knowledge, especially if you are using them on your pets. This is why it is important to choose good, clean oils that are processed by reputable companies. Take some time to find out about the company you are choosing to buy from before you begin using their products.
A great test to determine if your oil has been diluted with a base oil is to put a drop on a white piece of paper. If there is an oil spot left on the paper after an hour, you have a diluted essential oil which may be inferior quality.
One day, I walked into a local store and saw that they had essential oils. I asked the sales person about the quality of the oils without saying anything about my own knowledge. The person assured me that the oils were of a very high quality. The Sandalwood oil they carried (Sandalwood is a very, very expensive oil when pure) was priced at $10 for a 2 oz bottle. I knew it couldn’t be a pure product.