The word ‘synergy’ originates from the Greek phrase ‘sunergos’, which translates to ‘working together’. The process of synergy is where multiple components of a system come together to produce an overarching effect that cannot be reduced to the simple adding up of each individual effect. In other words, synergy is present when something is created that is greater than simply the sum of its parts.

Synergy can seem like a supernatural event at first glance, but it is abundant in nature and natural biology. Nature itself is a wonderful synergy of complex components – whether it is atoms, organs, beings, or entire ecosystems – interacting together to give rise to what we call the natural world. Synergistic effects are thought to be evolutionarily advantageous as they enable an organism to be equipped with diverse functions and abilities rather than simple, limited ones. In short, synergy can often be beneficial in multiple contexts because they produce outcomes that, given a constant set of inputs, would not have been possible before.

When different essential oils are blended or mixed together, the interaction between its various constituents can also give rise to these incredible synergistic effects. For example, it has been shown that the antifungal properties of Tea Tree oil (Melaleuca alternifolia) and Lavender oil (Lavandula angustifolia) are potentiated when mixed together. The resulting power is not just additive – it supersedes that to reach synergy.

Just like how single essential oil effects can be complex, so can these multiple interaction effects. When two specific oils are blended together, they may not necessarily produce a synergy, and can in fact impede on each other’s effects instead (a related concept known as ‘antagonism’). The ratios at which they are blended can also make a difference; one ratio can produce a synergistic effect while another can produce an antagonistic effect even though the same essential oils are used! This is why the choice of essential oils, along with their proportions, can make or break the positive properties of any particular blend.

Making an effective synergy blend is not an easy process. It requires a theoretical understanding of what synergy is and how it can be applied in a practical sense to provide therapeutic value. It also requires an in-depth knowledge of essential oils and their effects, an understanding of what the target condition is and the avenues through which it can be addressed via essential oils, solid experience in blending, and a lot of experimentation. Creating synergy blends is both a precise, data-driven, research-directed process, as well as a highly creative and artistic venture.

Aromatherapy practitioners, chemists, lab technicians, and other R&D professionals are well-equipped to make synergy blends. The first stage involves doing a comprehensive survey of the literature, along with a reflection of their own professional experience, to understand the target condition(s) and which essential oils may be the most relevant. The second – and most important – stage is to decide on exactly which oils should go into the synergy blend. This involves a careful consideration of the different properties of each essential oil and how they will behave together to ultimately bring about synergy. The greater the number of essential oils used, the more complicated it can get as the potential interactions and reactions can increase almost infinitely! The final stage is to select the optimal percentage of each oil that should be incorporated. Here, the therapist or chemist not only keeps in mind the therapeutic properties arising from different proportions, but also the final overall scent, which should be pleasant and appealing to the end user. Different batches may be created before deciding on the final formulation.

Simple synergy blends can also be created at home. First, decide on which essential oils you would like to use (typical blends incorporate a top, middle, and base note). Most practical aromatherapy books will have helpful reference guidelines or a chart that will list out which oils work harmoniously with each other (and which ones don’t). There are a few oils that tend to blend well with most others: this includes Lavender, Bergamot, Rose, Frankincense, and Ylang-Ylang essential oils. Select just two or three oils to keep potential undesirable interactions to a minimum.

Next, figure out the optimal ratios of each oil. Using perfume tester strips, start by adding a drop of each oil on each strip. Fan the strips from a distance to ‘blend’ the scents and inhale the aroma. You can gradually experiment with different ratios by adding more drops and fanning to test the scent each time. If the scent is unpleasant or overwhelming, it means the formula must be changed. Once you are happy with the final aroma, you can mix and create your own synergy blend.

The concept of synergy in aromatherapy refers to the mutually strengthening effects of certain essential oils when they are mixed together at correct ratios. Synergy blends apply this concept skillfully to create mixtures that have more potent effects than if one were to use each essential oil individually. They are typically crafted by aromatherapists, chemists, lab technicians, and other R&D professionals as both expertise and creativity is required for a synergy blend to be both effective and pleasing to the senses.

Synergy blends are popular owing to the convenience they provide. They allow the benefits of different essential oils to be enjoyed more economically as well. However, it is important to choose high-quality synergy blends from a reputed company for optimal results, and follow essential oil safety practices in order to use them safely and responsibly.

It is important to enjoy the benefits of these 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 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.

References

Advanced Aromatherapy: The Science of Essential Oil Therapy by Kurt Schnaubelt

Aromatherapeutic Blending: Essential Oils in Synergy by Jennifer Peace Rhind