Certified Clinical Aromatherapist, Nutritionist and Natural Products Formulator
Answer: A major constituent of several commonly used eucalyptus species is 1,8 cineol, and menthol is a major constituent of peppermint (Mentha × piperita) essential oil. It is true that essential oils which contain a high percentage of 1,8 cineole and/or menthol should not be applied to the faces of infants and children. While it’s also true that caution is advised, the skillful use of these essential oils can be quite beneficial, especially for respiratory illness and disease.
If eucalyptus (Eucalyptus spp.) and peppermint (Mentha × piperita) essential oils’ adverse event reports are examined, it will quickly become apparent that these events are the direct result of indiscriminate use. Using a professionally formulated, properly diluted essential oil blend which includes eucalyptus (Eucalyptus spp.) and peppermint (Mentha × piperita) essential oils in minor percentages is quite different than indiscriminately using these single essential oils.
The recommended use level for pure eucalyptus (Eucalyptus spp.) in products intended for children aged three years and up is approximately 1% diluted in carrier, depending on the expert safety source consulted. Let’s use narrow-leaved peppermint (Eucalyptus radiata) essential oil as an example. This species contains an average of 60-70% 1,8 cineole. If 'Sample Blend A' contained 10% of narrow-leaved peppermint (Eucalyptus radiata) essential oil and then it was to be diluted to 2% in carrier oil, the resulting blend would contain only 0.2% eucalyptus essential oil and a maximum 0.14% of 1,8 cineole which is well within accepted safety recommendations.
The recommended use level for pure peppermint (Mentha × piperita) essential oil in products intended for children aged three years and up is approximately 0.5% diluted in carrier, depending on the expert safety source consulted. Let’s use peppermint (Mentha × piperita) essential oil as an example. This species contains an average of 30-50% menthol. If ‘Sample Blend B’ contained 1% of peppermint (Mentha × piperita) essential oil and then it was to be diluted to 2% in carrier oil, the resulting blend would contain only 0.02% peppermint (Mentha × piperita) essential oil and a maximum of 0.01% menthol which is well within accepted safety recommendations.
It should be noted that respiratory disease is a leading cause of death in children worldwide. Safe and effective children's products containing 1,8 cineole and menthol have been on the market for hundreds of years and many studies attest to their safety and efficacy when used in responsible doses. Even water can kill if used irresponsibly. Why would we completely avoid the safe and effective use of essential oils which can help with respiratory disease, just because we have to be mindful of their safety guidelines? That line of reasoning is absurd and could be compared to advising parents against bathing their children in water.
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