What are some cautions I should consider when using fragrance oil or essential oils?
Be sure to read up on the oils which are safe to use on the skin, or whichever application you are going to include them in. You may also want to check the MSDS (material safety data sheet) which gives more insight into the chemical compounds that are found in the oils. Test the fragrance oil on a small area of your skin before using them in a batch of craftwork, to ensure that you will not get an allergic reaction.