It depends on the mixture

Pharmaceutical medicines often only contain up to three to four (sometimes synthetic) agents of a plant. In comparison, essential oils preserve the entirety of agents from the plant. Whilst science has identified the effect of individual ingredients it remains unclear as to how these substances in combination with all the other produced substances from the plant work.

Aromatherapy uses a rich potential of the plant and also works with the mixture of several essences to achieve the desired effect in case of complaints.

Not least, it depends on the right application.