Objective: To investigate the effect of acidum vitamin A on tyrosinase activity and provide experimental evidence for therapy of pigment disorder of skin.
Methods: Tyrosinase activity was estimated by measuring the rate of oxidation of DL-dopa.
Results: The levels of tyrosinase activity in the acidum vitamin A group were significantly greater than those of the control group (P < 0.01).
Conclusion: Tyrosinase activity can be increasingly induced by acidum vitamin A.