Figure 2.
Viability of human keratinocytes (HaCaT) cells after long, short, and post-treatment with persimmon extract rich in carotenoids (PEC) at low (lPEC) and high (hPEC) concentration against (A) UV-A (5 and 20 J/m2) and (B) UV-B (500 and 1000 J/m2) irradiation intensities. PEC treatment at lPEC (20 µg/mL) and hPEC (50 µg/mL) led to a significant increase of HaCaT viability post-irradiation, compared to irradiated but non-treated control (C) (**** p < 0.0001, *** p < 0.001, ** p < 0.01, * p < 0.05, ns p > 0.05, ANOVA, and Dunnett’s post hoc test). All data were normalized, according to a non-irradiated control (100% viability).