Chamazulene, which is responsible for the blue colour of
the volatile oil, is also one of the main components. In
Table 2, the composition of the most abundant molecules of
the essential oil is given, while the complete characterization
of the EO from A. arborescens will be discussed in
another paper. Three different vesicular formulations were
prepared using the essential oil. Their composition (Table 1)
is the result of a formulation study during which several
ratios of essential oil to lipids were evaluated. Best results in
terms of incorporation yields and stability were obtained
using compositions of