Aromatherapy Cheat Sheet 2026

The 30 highest-yield Aromatherapy facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

  1. For managing stress-related hypertension, which aromatherapy intervention has preliminary clinical evidence? Inhalation of lavender and ylang ylang blend
  2. What does 'rectification' mean in the context of essential oil production? Re-distilling an essential oil to remove unwanted or hazardous components
  3. For supporting sleep onset and improving sleep quality, which essential oil has the strongest clinical evidence? Lavender
  4. What does the term 'aromatherapy' most accurately describe? The therapeutic use of essential oils from plants
  5. Which essential oil will help you overcome your shyness and make lots of friends at school? Jasmine
  6. Which is a common risk of using oxidized (old, air-exposed) citrus essential oils on the skin? Increased risk of skin sensitization
  7. Why is a patch test recommended before broad use of a new essential oil blend? To check for allergic or sensitivity reactions
  8. Which method disperses essential oil into the air for inhalation? Diffusion
  9. Which oil is considered phototoxic and may cause skin reactions when exposed to sunlight? Bergamot
  10. Which carrier oil is technically a butter at room temperature and is commonly used in body butters and solid massage bars? Mango butter
  11. When making your blend, the FIRST choice you should make when determining how to treat a particular health complaint is You should choose which oil or oils you will use in the blend
  12. What is the typical safe dilution ratio for adult body massage blends? 2-3% essential oil
  13. For supporting immune function and reducing duration of colds, which essential oil has the most evidence-based support? Ravintsara (Cinnamomum camphora ct. 1,8-cineole)
  14. An oil labeled with a Latin binomial and chemotype (e.g., Rosmarinus officinalis CT verbenone) signals what to the buyer? A specific, standardized chemical profile
  15. Which essential oil is commonly used for its uplifting, mood-brightening citrus aroma? Sweet orange
  16. What is the purpose of a 'middle note' in a balanced blend? It forms the heart of the blend and rounds out the aroma
  17. What is a 'carrier oil' used for in aromatherapy? Diluting essential oils for safe skin application
  18. Which of the following is an absolute rather than a true essential oil? Jasmine absolute
  19. Which of the following essential oils is almost exclusively available as an absolute rather than a true steam-distilled essential oil? Jasmine
  20. Warming the massage oil before application primarily helps to: Improve comfort and glide on the skin
  21. When diffusing around pets or infants, best practice is to: Use intermittent diffusion in a ventilated space
  22. What is the primary benefit of making essential oil blends? Essential oils are more powerful when blended with other essential oils.
  23. Which essential oil is classically used to support respiratory function and relieve nasal congestion? Eucalyptus globulus
  24. Which essential oil is commonly used for its antiseptic properties on minor skin blemishes? Tea tree
  25. What is a hydrosol (floral water)? The aromatic water byproduct of steam distillation
  26. If essential oil accidentally gets in the eyes, what is the recommended first step? Flush with a carrier oil or clean vegetable oil, then water
  27. Which method disperses essential oils into the air as a fine mist without heat? Ultrasonic diffusion
  28. Sesquiterpenes, such as chamazulene in German chamomile, are chiefly noted for what property? Anti-inflammatory action
  29. What blending approach involves creating a 'bridge' oil to connect two seemingly incompatible oils? Bridging
  30. Molecular weight of an aromatic constituent most directly influences which practical property? Volatility and evaporation rate