Table 4.

Half maximal inhibitory concentration (IC50) against fibroblasts after 1 h and 24 h application of the antimicrobial.

Antimicrobial	Half Maximal Inhibitory Concentration [% (v/v)] [(g/L)]
	1 h	24 h
Cinnamon	0.03 (0.36)	0.01 (0.11)
Geranium	0.01 (0.08)	0.01 (0.07)
Melissa	0.03 (0.3)	0.03 (0.3)
E-cinnamaldehyde	0.003 (0.03)	0.002 (0.02)
CHX	0.01 (0.15)	7.32 × 10−4 (0.008)

Half maximal inhibitory concentration (IC50) defined as the antimicrobial concentration that inhibits the 50% of cell proliferation compared to controls without agent. IC50 values are in % (v/v) and in brackets are the equivalent IC50 values in (g/L).