These experimental results demonstrated that, of the
four major constituents of both tested essential oils,
neral, geranial and citronellal were the most toxic for
HaCaT cell line. Consequently, the cytotoxic effect of
the essential oils of C. citratus and C. nardus found in
this study was undoubtedly due to citral (neral and
geranial), for the citratus oil, and to citronellal for that of
nardus. Previous works only assumed what we