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Effect of CWT on guinea pig skin with vitiligo induced by hydrogen peroxide. (a) Effect on hair and skin color. (b) Morphological analysis of skin tissue (H&E staining). (c) Melanin content (Lillie staining). (d) L-DOPA positive cells in the basal layer of guinea pig epidermis—the L-DOPA oxidation method. (e) Distribution of melanin in the epidermis. ##P < 0.05 vs. the normal control group, ∗∗P < 0.05 vs. the model group. NC, blank group; positive, positive control.
