Figure 5: The effects of eckol and dieckol on viability of and lipid peroxidation in HaCaT keratinocytes exposed to PM10. The cells were exposed to PM10 (100 μg mL−1) for 48 h in the absence and presence of eckol or dieckol at different concentrations (1–10 μg mL−1). The cell viability (a, b) and cellular lipid peroxidation (c, d) were determined. The data are presented as a percentage of the control values (mean ± SE, ). < 0.05 versus PM10 control.