All safety information on this site is taken from Robert Tisserand's book "Essential Oil Safety, 2nd Edition" and website www.tisserandinstitute.org. Robert Tisserand is one of the world's leading experts in aromatherapy. His book is the most comprehensive on the market and covers groundbreaking material and information that has never before been published. The book is also the first to explore possible drug interactions between essential oils and pharmaceuticals. With over 10,000 references to scientific research, and two well-studied authors, this is information that can be trusted.
That being said, many essential oils have had very limited or no research conducted with them at all that can be used in regards to human safety. Always be very careful when using an essential oil on yourself, or an other, for the first time.