Using the oils in everyday life. Some of the most beneficial oils can prove harmful under certain conditions. Concentrated oils are very strong, and just because a product is natural doesn't mean that it's harmless.
Inappropriate use can often lead to adverse and damaging side effects.
This is a partial list of medical conditions that warrant avoiding some oils. If you are aware of other contraindications that we've omitted, please email us. Basil, Cedarwood,Clary, Coriander, Hyssop, Jasmine, Juniper,Marjoram. Please note, the above oils are listed as contraindicated during pregnancy by most Aromatherapy authors. The vast majority of oils you have listed are common food additives.