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Cytotoxicity of RG NGEL and RG WE against human skin cells. (A) Fibroblast and (B) HaCaT cells were treated with various concentrations (0–500 μg/ml) of RG NGEL or RG WE for 24 h. Data are expressed as the mean value (±SD) from three separate experiments. *, p < 0.05; **, p < 0.01; ***, p < 0.001.
RG NGEL, red ginseng NaturalGEL; RG WE, red ginseng water extract.
