Guide to Verifying Essential Oil Quality

Explore AromaWeb's 10-part guide for an overview of the quantitative and subjective testing methods that are used to assess the quality and purity of essential oils.

• Part 1:
  Introduction
• Part 2:
  Why Is the Quality/Purity of an Essential Oil Important?
• Part 3:
  Aren't Most Essential Oils Pure?
• Part 4:
  Constituents - What do Essential Oils Consist Of?
• Part 5:
  Quality vs. Purity - Aren't They the Same Thing?
• Part 6:
  Quantifiable Testing of Essential Oils
• Part 7:
  GC-MS Test Results - How Can They Be Used?
• Part 8:
  Organoleptic Testing of Essential Oils
• Part 9:
  Other Quantifiable Tests for Testing the Quality and Purity of Essential Oils
• Part 10:
  Essential Oil Quality and Purity Conclusion: Final Questions/Answers