Inhibitory effects of arbutin () on tyrosinase activity in human melanocytes. Cultures of 10 000 cells cm 2 were
incubated with these agents for 3 days. Tyrosinase activity was measured using L-DOPA (1 10 3 mol l 1 ) as the substrate.
The results are expressed as percentage of inhibition with respect to the untreated control.
nhibition of cellular tyrosinase activity