Fig. 2From: Effects of Helichrysum bracteatum flower extracts on UVB irradiation-induced inflammatory biomarker expressionCell viability of H. bracteatum flower extracts (HBFE)-treated HEKa cellsCells were treated with H. bracteatum flower extracts at concentrations of 10, 20, 50, 100 and 500 μg/mL for 24 h. Cytotoxicity was measured using the MTT assay. The results are expressed as the mean ± SD of three independent experiments.Back to article page