Concentration µg/ml

5-FU

Cinnamon essential oil

Lemon essential oil

100

8.6

8.1

36.1

50

17.1

16.4

48.2

25

24.0

22.5

63.0

12.5

33.1

38.3

74.7

6.25

56.8

57.2

93.6

3.125

70.6

73.8

100

1.56

88.7

94.2

100