Fig. 6
a Images of erianin gel, E/DMSN1 gel, and E/DMSN2 gel. b Amounts of erianin accumulated in the skin and permeated through the skin after 24 h application. The receptor chamber was PBS/ethanol (80/20, v/v) and was continuously stirred at 37 °C. Values are represented as means ± SD (n = 3). ***p < 0.005, ****p < 0.001, significantly different compared with the erianin group