Fig. 3. Histological observation of mast cells in the back skin of C57BL/6 mice to which test compounds were applied topically for 4 weeks. N: saline, VC: jojoba oil, PC: 3% minoxidil, E1: 3% lavender oil, E2: 5% lavender oil. (A) Mast cells. Toluidine blue staining, × 200. In the PC, E1, and E2 groups, the number of mast cells (arrows marks) gradually decreased as compared to the N group. (B) Mast cell number. Each value represents the mean ± SD of 6 mice. a,b,c,dValues with different superscripts at a given week are significantly (p < 0.05) different by ANOVA and Duncan’s multiple range tests.
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