Hazardous Essential Oils

The below chart displays essential oils that should not be used in aromatherapy without the express administration by a qualified aromatherapy practitioner. Many should not even be used by a qualified practitioner. Do not assume that an oil is safe to use if it is not on this list.

• Ajowan
  
• Almond, bitter
  
• Arnica
  
• Birch, sweet
  
• Boldoleaf
  
• Broom, Spanish
  
• Calamus
  
• Camphor
  
• Deertongue
  
• Garlic
  
• Horseradish
  
• Jaborandi
  
• Melilotus
  
• Mugwort
  
• Mustard
  
• Onion
  
• Pennyroyal
  
• Rue
  
• Sassafras
  
• Thuja
  
• Wintergreen
  
• Wormseed
  
• Wormwood