Table 3.

Inhibitory effects of urolithin derivatives 1c and 1h, o-phenylbenzyl alcohol 2a, and kojic acid on mushroom tyrosinase activity.

Compound	Concentration (μM)	Inhibition (%)			Average of Inhibition (%)	IC50 (μM)
1c	1.56	2.61	4.01	2.57	3.06 ± 0.47	18.09 ± 0.25
	3.13	9.61	10.84	9.94	10.13 ± 0.37
	6.25	27.31	25.08	33.10	28.50 ± 2.39
	12.50	43.74	45.18	48.37	45.76 ± 1.37
	25.00	60.89	61.85	60.89	61.21 ± 0.32
1h	0.78	15.68	15.61	18.94	16.74 ± 1.10	4.14 ± 0.10
	1.56	28.27	24.63	31.11	28.00 ± 1.88
	3.13	48.71	48.71	48.92	48.78 ± 0.07
	6.25	63.98	63.95	66.79	64.91 ± 0.94
2a	1.56	0.27	0.72	1.06	0.68 ± 0.23	15.69 ± 0.40
	3.13	28.06	10.29	7.03	15.13 ± 6.53
	6.25	32.25	31.66	31.22	31.71 ± 0.30
	12.50	55.81	50.39	54.31	53.50 ± 1.62
	25.00	69.81	68.71	69.37	69.30 ± 0.32
Kojic acid	12.50	14.68	20.50	23.41	19.53 ± 2.57	48.62 ± 3.38
	25.00	37.46	42.27	42.44	40.72 ± 1.63
	50.00	43.81	48.83	53.08	48.57 ± 2.68