People with dementia tend to lose their sense of smell (referred to as anosmia`)though this is not believed to interfere with the effects of essential oils. For those clients who do still have a sense of smell, it is important that therapists allow them to choose their own oils where possible. This is because some aromas may have negative connotations for the elderly. E.g. for many Europeans aged 70+ lavender may be associated with death or dying relatives, as this particular herb was often used to scent bed linen and night garments. Some aromatherapists, believe that clients will instinctively select those oils that are best for them, at any given time. Various studies and experienced practitioners have suggested that certain essential oils may be of particular benefit to some of the symptoms associated with dementia. 

For memory loss/ cognitive function. 

• Rosemary-Geranium-Mandarin-Lemon Balm-Peppermint –Lavender

For disturbed sleep/ insomnia 

• Lavender-Marjoram-Camomile-Neroli.

Clinical studies have shown that small amounts of lavender: can be effective as a sedative ( or reduce the amount required) do not have the same undesirable side effects as some sedatives (e.g. constipation, confusion, incontinence due to abnormally deep sleep) is more cost-effective than sedatives or other medical interventions used to counteract the side effects of sedatives. It is advised that only the normal concentration of essential oils should be used when massaging elderly, e.g.1%. Drops on a pillow, in the bath, or in a vapouriser/burner may just as beneficial and preferable to elderly clients ( though vapourised oils will obviously affect other people present in the room, which could present a problem in a nursing home or hospital environment.

Ref: International Therapist-Issue 63-March/April 2005