Article New Whitening Constituents from Taiwan-Native Pyracantha koidzumii: Structures and Tyrosinase Inhibitory Analysis in Human Epidermal Melanocytes Rong-Dih Lin 1, Mei-Chuan Chen 2,3, Yan-Ling Liu 2, Yi-Tzu Lin 2,3, Mei-Kuang Lu 4, Feng-Lin Hsu 2 and Mei-Hsien Lee ...