Table 4.

Cytotoxic activity of M. vulgare essential oil determined by the MTT assay.

Oil (μg/ml)	Mean OD570 (nm)	% Viable HeLa cell line
0	0.971	100.00
3.91	0.836	86.10
7.81	0.815	83.93
15.63	0.798	82.18
31.25	0.780	80.94
62.50	0.756	77.85
125	0.717	73.84
250	0.707	72.81
500	0.015	01.54
1000	0.031	00.31
3000	0.023	00.21