The Biology of Essential Oils: A Guide to Plant-Based Wellness

When we look for natural wellness solutions, we often hear about the benefits of essential oils.

But what exactly are they, and how do they interact with our biology?

Hello everyone, I am Hye Jung Kim, a Naha 1 & 2 certified expert. I am so excited to share the amazing, natural wellness solutions found in dōTERRA essential oils.   

What Are Essential Oils?

Essential oils are highly concentrated natural extracts derived from plants. They are taken from flowers, leaves, stems, bark, resin, or seeds. They capture the pure aroma and healing energy of nature, supporting balance in the body, mind, and emotions. They are powerful tools for natural self-care and emotional wellness.  

The Process of Smelling

When you inhale an oil, aromatic molecules enter your nose and bind to olfactory receptors on tiny hair-like structures called cilia. This activates a signal to the olfactory bulb, which then sends the message to the limbic system—the part of the brain responsible for emotion, memory, and behavior.  

Three Ways to Use Essential Oils

There are three main ways to use essential oils safely and effectively:  

• Aromatically (Through smell): You can inhale directly from the bottle, use a diffuser, or place a drop on your palms and breathe deeply. This method supports mood, focus, and emotional well-being.  

  
  

• Topically (On your skin): Apply to the skin with a carrier oil, such as fractionated coconut oil. This allows the oil to absorb into the body and target specific areas like the temples, neck, back, chest, wrists, or the bottoms of the feet. Always dilute, especially for sensitive skin!  

  
  

• Internally: Some dōTERRA essential oils are safe for internal use when specifically labeled for it, such as taking a drop in water, under the tongue, or in a veggie capsule. Not all essential oils are intended for internal use, so always check the product label and only use CPTG-certified oils for ingestion.  

Targeted Oils for Everyday Use

Here are a few examples of how specific oils can support your routine:  

• Lavender: Derived from the flower of the lavender plant, it helps with sleep and stress relief. Diffusing lavender before bed is great for relaxation.  

• Peppermint: Inhaling peppermint provides energy and clarity, and it is also great for headaches and digestion. 

• Lemon: Extracted from the peel of fresh lemons, it supports cleaning vitality and a better mood. Each 15ml bottle of dōTERRA Lemon oil is made from the cold-pressed peels of approximately 45-50 fresh lemons.  

• Hinoki: Derived from the wood of the Japanese Cypress tree, it offers a soothing, woody aroma.  

• On Guard: A powerful blend that supports your immune system.  

• Tea Tree: Perfect for skin issues like acne and cuts, thanks to its antibacterial properties. 

Why dōTERRA?

Not all oils are created equal. dōTERRA is special because its oils are CPTG (Certified Pure Tested Grade). Every drop is pure and free from toxins, chemicals, or fillers. Each batch goes through over 50 rigorous tests to ensure quality and safety.  

Through Co-Impact Sourcing, dōTERRA works directly with farmers in over 45 countries, ensuring ethical labor, fair pay, and sustainable practices. This ensures high-quality farming everywhere from the lavender fields in Bulgaria to the frankincense trees in Somalia.  

Essential oils are the plant's way of surviving, healing, and communicating. When we use them, we receive the same gifts of protection, balance, and renewal.