Figure 4.
Changes in skin-damage-related factors in human skin cell lines. (A) Procollagen synthetic enhancement measurement in CCD-986sk cells by microplate reader. (B) Hyaluronic acid measurement in HaCaT cells. (C) Measurement of matrix metalloproteinase-1 (MMP-1) mRNA expression in CCD-986sk cells by qRT-PCR. Values with different letters are significantly different by ANOVA followed by the Newman–Keuls multiple range test (p < 0.05). NC: normal control, UVB: Ultraviolet, WEO: wheat extract oil, HA: Hyaluronic acid.