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Cytotoxicity of different hydrolysable tannins (A); Anti-keratinocyte over-proliferative effects of hydrolysable tannins (B); B: blank; C: control; * p < 0.05, compared to the testosterone-only group; Data are presented as the mean ± SD; Significance was calculated using a one-way analysis of variance (ANOVA) via SPSS software v.15; Data are from three repeats.
