Dilution Guidelines for Essential Oil Blending

Essential oils have been cherished for their therapeutic properties for millennia. These natural plant extracts, derived from the essence of plants, are a precious gift from Mother Earth. Their common uses include inhalation and topical application to promote overall health and well-being.

At Nila Singapore, we are driven by our passion for plants and the healing power of nature. Our mission is to share our knowledge of the therapeutic properties of essential oils and how to use them safely and effectively.

In this article, we will explain how to safely use essential oils in your aromatherapy journey to promote better health and wellbeing.

Method 1: Inhalation
When we inhale the aroma of essential oils, aromatic molecules are captured by our sensory receptors and transmitted to our olfactory system. Our olfactory system is a vital part of the limbic brain, also knowns as the “emotional brain”. This part of our brain plays an important role in regulating our mood, emotion, behaviours, sense of smell, and long-term memory.

This explains why scent has the power to evoke memories and trigger responses. The limbic system also regulates essential body functions such as breathing, heart rate, and blood pressure. Through simple inhalation, we can reap the holistic benefits of aromatherapy as our mind, body, and spirit are harmonised.

Ways of inhalation: Use diffusers, nebuilisers, essential oil burners, steam inhalation, aroma inhaler sticks, or other aroma accessories. Please follow the dilution guidelines as specified below.


Method 2: Topical Application
Topical application of essential oils targets specific areas for physical effects or to address particular concerns. It is important to ensure proper dilution and never apply essential oils neat (directly and undiluted).

To dilute essential oils, use a base oil (also known as carrier oil). This effectively delivers the therapeutic properties of essential oils to our skin and bloodstream. You can also choose to dilute your essential oils in base products such as unscented body washshampoo, lotion, or even a mist. Since oil and water does not mix, these base products will contain an emulsifier to facilitate the binding of essential oils with water-based components, thus ensuring a balanced blend.

Remember, proper blending is key and less is more!

Dilution Chart

Safety Information

Essential oils are highly concentrated and can be harmful if not used carefully.

Do treat essential oils with respect and learn about their safety to safely enjoying the many therapeutic benefits that essential oils can offer.

Always consult with a qualified aromatherapist before implementing essential oils into your lifestyle.

Do not use essential oils directly on the skin as it may cause bad reaction. The safest rule of thumb is to never use any essential oil undiluted and to be sure to dilute all essential oils adequately. See Dilution Guidelines provided above.

Some oils can cause irritation, sensitisation or allergic reactions in some individuals. Always do a patch test topically when you are new to an oil. Apply a small area of skin with the oil and wait for 15 minutes.

Some essential oils are phototoxic and can cause irritation, burns, inflammation, blistering and/or redness when exposed to UV rays. Please use with caution.

If you encounter any irritation, redness or reaction, discontinue the use of the essential oil or blend immediately.

Do not add essential oils directly to bathwater. Essential oils do not stay mixed with water and should never be added to bathwater without being diluted/solubilised properly. Essential oils that are at higher risk of causing irritation and sensitisation should be avoided completely for bath.

Avoid using essential oils near the genitals, mouth, nose, eyes, and ears.

Some essential oils should be avoided during pregnancy or by those with asthma, epilepsy, or with other health conditions. Please use with caution.

Exercise extreme caution when using oils with children or the elderly. Check the recommended dilution ratio and contraindications before use with a qualified aromatherapist. Children should never use essential oils without the presence of an adult knowledgeable about their use.

Always research and review the safety precautions associated with each essential oil before you use them.

Less is more. When using essential oils, use the smallest amount of essential oil that will get the job done. This saves our Earth’s resources as well as your pocket.

Not all essential oils are suitable for use in aromatherapy. Check out some examples from the list of hazardous essential oils: Wormwood, Pennyroyal, Onion, Camphor, Horseradish, Wintergreen, Rue, Bitter Almond and Sassafras.

Essential oils oxidise over time and can become more sensitising and irritating. Avoid using old or improperly stored essential oils for therapeutic applications.

Essential oils and blends that we use are not always safe for our pets. Always research and review before using any oils on them. In doubt, do not use at all.

Diffuse essential oils sensibly and in a well ventilated space.. They should not be continuously diffused.

Essential oils should not be taken internally without guidance by a qualified clinical aromatherapist.

Essential oils are flammable. Keep them out of the way of fire hazards.

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