This is a useful chart to have. My family and I have been using oils for over 20 months. They are AMAZING and we have found that they work quite fast. I would love to share my oil experiences with you! If you would like to know more about Young Living Essential OILS CLICK HERE. I have not regretted the choice to go toxic free in my home both under my sink and in my bathroom cabinet. Personal products in my home are now easily and inexpensively made by me. I know every single ingredient I am putting on my body. Our overall wellness have never been better!!