Figure 3.

Viability of fibroblasts stressed with hydrogen peroxide and protected with Lavandula angustifolia extract in dispersion or loaded in hyalurosomes properly diluted to reach 10, 1, 0.1, 0.01 μg/mL of extract. Data are reported as mean values (n = 9) ± standard deviations (error bars) of cell viability expressed as the percentage of untreated cells (100% viability). Symbol (*) indicates that the viability of the cells treated with the extract in dispersion and loaded in 0.1 hyalurosomes are statistically different from that of cells treated with hydrogen peroxide (p < 0.05); symbol (^⦿) indicates that the viability of the cells treated with 0.1 hyalurosomes is statistically different from that of cells treated with the extract in dispersion (p < 0.05).