LEMON BALM ESSENTIAL OIL (MELISSA OFFICINALIS)

 It was able to interact with a range of receptors, 5-HT 5-HT GABA histamine H receptor.

That are importance in the mediation of agitation, which could explain its calming and cognition enhancement actions. They suggested that the topical or inhale of lemon balm could be a better way of a treatment for agitation than the usual IM injection or tablets.(Elliot eat al 2007.) 

Lemon balm has been shown to be of therapeutic value in dementia by calming, reducing agitation and enhancing cognition (Ballard 2002)

It has both antiAchE and anxieolytic action.