The Power of Scent: A Guide to Safe Essential Oil Diffusing

Our sense of smell, though often overlooked, wields immense influence over our emotions, memories, and well-being. With approximately 950 odorant receptor genes packed within the human genome, our noses not only detect potential threats but also link scents directly to our emotional and memory centres in the brain.

Amidst our fast-paced lives, aromatherapy emerges as a refuge, a means to alleviate stress and nurture self-care. Essential oil diffusers are now a household favourite, but how safe are they? Do they emit harmful VOCs? What is the recommended duration for diffusing, especially around children and pets? We will demystify these concerns for you.

Why aromatherapy? Aromatherapy offers a tangible pathway to stress relief. The unique chemical properties of essential oils can help ease emotional distress, stimulate relaxation, and mitigate the mental and physical toll of stress. For instance:

• Inhalation of bergamot essential oil has been found to significantly reduce cortisol levels, a stress hormone. (2)
• Diffusing bergamot in waiting areas can uplift mood. (3)
• A combination of lavender and ylang ylang essential oils can significantly temper stress and lower blood pressure. (4)

Methods of diffusion. Passive diffusion: a natural method where the oil's aroma disperses as it evaporates. Simple ways include applying drops to cotton balls or clay jewellery, or setting out a reed diffuser.

Active diffusion: this involves specialised equipment. The popular choices include:

• Ultrasonic diffusers: these use water and ultrasonic waves to emit a fine mist of essential oil into the air.
• Nebuliser diffusers: a more direct method where pure essential oils are atomised and dispersed into the air.

Safety first. While current research does not flag any glaring risks in diffusing essential oils, moderation remains key. It is wise to diffuse intermittently: ideally 30 to 60 minutes on, then an equal amount of time off. Fresh air circulation is also crucial. (5)

Concerns over VOCs. VOCs (volatile organic compounds) have been a topic of debate in connection with diffusers. While it is true that essential oils are VOCs, they are not necessarily toxic. Many everyday items release VOCs, from ripe bananas to candles. Current research does not show toxic levels of VOCs from diffusing essential oils. (5)

Tips for safe diffusing:

• Always opt for pure, unadulterated essential oils.
• Diffuse in spacious, well-ventilated areas.
• Limit direct exposure for infants, and ensure diffusers and oils are out of reach for children and pets.
• For pets, especially cats, be cautious. Cats metabolise substances differently to humans or dogs. Avoid oils high in phenols, such as thyme or oregano.
• Always follow diffuser guidelines regarding the quantity of oil and water.

Why don't I smell my oils after a while? It is likely sensory adaptation. Your brain is adept at tuning out consistent stimuli. Take a break, and you will notice the scent upon return.

Maintenance. Clean your diffuser at least once a week. Some oils may need more frequent cleaning.

Read more from the Yougi Journal:

• The Top 10 FAQs About Diffusing Essential Oils
• How to Use Your Electric Diffuser: Tips and Tricks from Yougi
• Essential Oils 101: A Beginner's Guide
• Aromatherapy Explained

If you are ready to begin, explore our pure essential oils and reed diffusers.

Note: for specific health concerns or queries, always consult a healthcare professional. This guide is for informational purposes only.

References: Lv XN, Liu ZJ, Zhang HJ, Tzeng CM. Aromatherapy and the central nerve system (CNS): therapeutic mechanism and its associated genes. Curr Drug Targets. 2013 Jul;14(8):872-9. Watanabe E, Kuchta K, Kimura M, Rauwald HW, Kamei T, Imanishi J. Effects of bergamot (Citrus bergamia (Risso) Wright & Arn.) essential oil aromatherapy on mood states, parasympathetic nervous system activity, and salivary cortisol levels in 41 healthy females. Forsch Komplementmed. 2015;22(1):43-9. Han X, Gibson J, Eggett DL, Parker TL. Bergamot (Citrus bergamia) Essential Oil Inhalation Improves Positive Feelings in the Waiting Room of a Mental Health Treatment Center: A Pilot Study. Phytother Res. 2017 May;31(5):812-816. Hwang JH. The effects of the inhalation method using essential oils on blood pressure and stress responses of clients with essential hypertension. Taehan Kanho Hakhoe Chi. 2006 Dec;36(7):1123-34. Tisserand, Robert. Safety Guidelines, Tisserand Institute. Blau JN, Solomon F. Smell and other sensory disturbances in migraine. J Neurol. 1985;232(5):275-6.

Disclaimer: the content in this guide is not a substitute for professional medical advice. Please seek expert advice for any health-related concerns.