Fig. 2

Effects of Oxya chinensis sinuosa Mishchenko extract (Oc.Ex) on ultraviolet B (UVB)-induced skin hydration. a Hyaluronic acid (HA), b transforming growth factor (TGF)-β mRNA, and c pro-collagen expression levels in skin tissue. Data are compared with those of the normal (^####p < 0.0001) and vehicle (****p < 0.0001) groups. Nor, Normal; Veh, Vehicle; Oc. Ex, Oxya chinensis sinuosa Mishchenko extract