THE THEORY & PRACTICE OF ESSENTIAL OIL BLENDING

This kind of grouping makes it easier to see which essential oils may be combined to produce a specific benefit that you are seeking. For example, to create a blend that promotes relaxation and eases stress, you could choose essential oils that are calming or uplifting (such as Bergamot) and avoid those that are known to be particularly stimulating or energizing (such as Ginger or Grapefruit). Similarly, to make a naturally sultry massage blend that helps enhance and arouse sensual desires, incorporating aphrodisiac oils such as Clary Sage or Sandalwood can be especially helpful.

WHICH MODEL OR TECHNIQUE SHOULD I CHOOSE FOR MY BLEND?

It is often said that essential oil blending is as much an art as it is a science. This is very true. Each model is simply a guiding force, and which one you ultimately use simply depends on your tastes and preferences. If a particular classification makes more sense to you, or it personally appeals to you in some other way, you can opt for it over others. Different models can also be combined creatively together. For instance, you could select a top, middle, and base note that all belong to one scent family or display a single therapeutic effect. When in doubt, the NDA website lists out blending recommendations for each essential oil product, and provides a valuable starting point.

You will often find that different reference guides, charts, and books will have some level of variation when it comes to groupings. This is due to the complexity and subjectivity that is the very nature of essential oils, and it can sometimes be tricky to place them within a single box or category. Thus, some oils may be classified as both a base note or middle note (an example is Black Pepper oil), and others can be found to be both calming and stimulating to the mind (such as Lemon oil).

PART 2: THE PRACTICE OF ESSENTIAL OIL BLENDING

This easy-to-follow six-step guide will help you apply the theories above to create your very own aromatic or therapeutic essential oil blend.

Step 1: Understand & Be Mindful Of The Importance Of Safety

The creative blending of essential oils is such a pleasurable activity that it can be easy to forget that these natural volatile oils can cause harm if used incorrectly or without proper safety guidelines in place.

Take care to avoid spillages as pure and undiluted essential oils can cause irritation in the event of skin contact, and can also potentially damage or stain certain materials and surfaces such as rubber, carpets, furniture, or clothes. Essential oils can also irritate the linings of the eyes, so try to keep an appropriate distance when mixing and close bottles when not in use.

As safety information on different essential oils can vary, it is critical to make yourself aware of individual precautions before using each oil, by reading the label on the bottle, checking the manufacturer's website, or by consulting authoritative texts such as Tisserand and Young's Essential Oil Safety.

Step 2: Purchase Or Gather Your Blending Equipment

The basic equipment you will need for blending include:

• Amber or cobalt-blue glass bottles of a preferred size (2 mL - 60 mL)
• Glass droppers
• Perfume tester strips
• Labeling tape or stickers
• A marker

Remember that pure essential oils should not be stored in plastic bottles, and can impair rubber tops as well. Glass eye droppers are available for essential oils, and it is best to use individual droppers to avoid the intermixing of different oils.

Step 3: Brainstorm A Selection Of Essential Oils

With the help of the theories and guiding frameworks outlined in Part 1, you can now select which essential oils you would like to use in your blend. Keep in mind there is no one way to use or apply the different categorizations, and they can also be integrated together to suit a particular purpose. You can keep a trusted reference chart or essential oil book with you to consult while you are coming up with ideas. For aromatic blending, NDA has a comprehensive article about essential oil groupings here. Each of our essential oil products also lists out its aromatic profile, which can be used to gather information about their perfume note and scent family.

This step is a very creative and cathartic process, so you should not be afraid to explore different possibilities and combinations, while using your imagination to visualize and experience the end result. The number of essential oils can always be narrowed down later on.

Step 4: Orient Yourself To Each Essential Oil

Getting acquainted with the individual scents of essential oils is an important pre-step before actual blending begins.

The olfactory experience of an essential oil can be quite unique and memorable. When the scent of an essential oil is inhaled, its molecules travel quickly to the olfactory receptors within the nasal cavity. Here, the information gets registered and sent to the brain, including to a set of structures collectively known as the limbic system. The limbic system is responsible for the regulation of emotions and memories; this is why smelling can be a powerful memory jogger and sometimes an intensely emotional experience.

The best way to experience the fragrance of an essential oil is to place a few drops on a perfume tester strip. Then, fan the strip in front of you and inhale. If you like, you can jot down a few words that immediately come to mind. For example, you could ask yourself:

• What is my initial reaction towards this aroma? Is it positive, negative, or neutral?
• What are some words I would use to describe it?
• How strong or intense is this aroma?
• How did it make me feel? Uplifted, calm, balanced, energized?
• Does this aroma remind me of anything? A flower, an object, or perhaps even a memory?

Then, take a short break before inhaling your next desired oil. This is to prevent olfactory fatigue, which can sometimes affect our sense of smell after experiencing an aroma for an extended period of time.

Through this process, you can narrow down and pick out which essential oils you feel will create a strong, harmonious, and pleasant fit once blended together. For beginners, a three-oil blend is typically recommended. To get an initial understanding of how your blend might smell like without potentially wasting any oils, place a few drops on separate perfume testing strips and fan them together before inhaling.

Step 5: Create Your Essential Oil Blend

You should now have a fair idea about which essential oils will be going into your blend. The next step involves a little experimentation to discover the ideal ratios needed for each oil in order for it to rounded and well-balanced.

As is the case with essential oil classifications, there is no one way to decide on which ratio should be used. Initially, a 1:1:1 ratio can be attempted; another popular ratio is 3:5:2, which refers to the top note, middle note, and base note, in that order. So for example, if you decide on the latter ratio and would like your blend to consist of 20 total drops of oil, you would mix 6 drops of your top note, 10 drops of your middle note, and finally 4 drops of your base note. Add your oils in drop by drop into a glass bottle, guided not only by your preferred ratio but also your intuition as the aroma of your blend shifts and morphs and takes on a distinctive shape. There can sometimes be the temptation to add in 'just one more drop'; to avoid this, be sure to take a small break from time to time to prevent fatigue affecting your blend's composition.

Step 6: Storing And Using Your Essential Oil Blend

Once your perfect blend has been created, it is time to seal and label your glass bottle, place it in a cool, dark place, and let it evolve and mature for 2-5 days. During this time, a dynamic process takes place, where the constituents of each oil will settle and interact with one another and transform into its final aroma. When it is time to revisit your creation, you can repeat the exploratory questions found in Step 4, which will encourage you to reflect on the aroma as well as take note of things you may need to modify or alter in future blending sessions.

The proper storage of your blend is important to ensure it lasts longer and does not degrade due to ultraviolet light or heat. The best way to store pure essential oil blends is in an amber or cobalt-blue dark glass bottle with a tight-fitting lid and kept away from moisture, heat, and sunlight. Some individuals prefer to store their blends inside a refrigerator.

Finally, determine what would be the best way for you to experience or gain the maximum therapeutic benefits of your blend. To benefit from inhalation, you may add 5-8 drops to an electric diffuser. To make your own personalized fragrance, pour a tablespoon (15 mL/0.5 oz) of Jojoba or Sweet Almond Oil into a roller bottle and add 7-10 drops of your blend. This will create a 2% dilution that can be applied to the wrists, neck, or inner elbows. To incorporate into your beauty routine, you can add the blend to a cosmetic base cream or lotion base at the dilution rate specified by the manufacturer. Alternatively, to create a massage blend, add 10-15 drops to 2 tablespoons (30 mL/1 oz) of a preferred carrier oil. To use, warm the mixture in your hands and rub or massage with gentle strokes until fully absorbed.

Interested in learning more about Essential Oil families and categories, along with their benefits? Read our comprehensive guide here.

Want to discover more about the phenomenon of Synergy? Read our article on the magic of Synergy and Synergy Blends here.

USING ESSENTIAL OILS SAFELY

It is important to enjoy the benefits of essential oils while using them safely and responsibly. This includes never using them undiluted, performing a skin patch test prior to use, being knowledgeable about the sun's effects after use, and sourcing them from an ethical brand known for quality and purity.

External use only

As with all other New Directions Aromatics products, essential oils are for external use only. Essential oils must never be used near the eyes, inner nose, and ears, or on any other particularly sensitive areas of skin. It is imperative to consult a medical practitioner before using these oils for therapeutic purposes.

Pregnancy and other health conditions

Pregnant and nursing women are especially advised not to use essential oils without the medical advice of a physician.

Those with the following health conditions are especially recommended to consult the advice of a physician: cancer, heart-related ailments, skin disorders or allergies, hormone-related ailments, or epilepsy.

Individuals that are taking prescription drugs, undergoing major surgery, or who are at a greater risk of experiencing strokes, heart attacks, or atherosclerosis are also advised to seek medical consultation prior to use.

Children and safety

These oils should always be stored in an area that is inaccessible to children, especially those under the age of seven.

How to conduct a skin patch test

Prior to using any essential oil, a skin test is recommended. This can be done by diluting 1 drop of the essential oil in 4 drops of a carrier oil and applying a dime-size amount of this blend to a small area of non-sensitive skin.

Essential oil side effects

Potential side effects of essential oils include redness, rash, hives, burning, bleeding disorders, decreased speed of healing, low blood pressure, dizziness, headache, nausea, diarrhea, convulsions, and rapid heartbeat. In the event of an allergic reaction, discontinue use of the products and see a doctor, pharmacist, or allergist immediately for a health assessment and appropriate remedial action. To prevent side effects, consult with a medical professional prior to use.