These info graphics are from the trusted Tisserand Institute. Robert Tisserand is one of the world’s leading experts in aromatherapy. His book, Essential Oil Safety, sets the industry and home use standards. These guidelines are for general use only and do not imply that these dilutions are safe for all essential oils in all situations.
We properly dilute essential oils to avoid adverse reactions. Skin reactions are the most common adverse reactions to essential oils, and they include:
- Irritation (Irritant contact dermatitis)
- Allergic contact dermatitis (delayed hypersensitivity)
- Contact urticaria (immediate hypersensitivity)
You can read more about allergic reactions at Tisserand Institute.


