Figure 2.

H&E staining in the dorsal skin of (A) the control and (B) 2% PBE groups at 17 days after the topical application of distilled water and 2% PBE, respectively (scale bar, 50 µm). No significant difference was detected in their hair follicles (arrows) between the two groups. (C) Mean numbers of hair follicles and (D) mean thickness of epidermis. The bars indicate the means ± standard error of the mean (n=10 in each group). Ep, epidermis; D, dermis; HF, hair follicle; PBE, Pinus thunbergii bark extract.