Table 2. In vitro tyrosinase inhibition percentage (TI - %) of ethanolic extracts from H. undatus flowers harvested at the four flowering stages at the concentration of 1 mg/mL

Extract	Tyrosinase inhibition percentage (%)	Extract	Tyrosinase inhibition percentage (%)
HUF1A	111.79 ± 1.54	HUF1B	99.70 ± 1.14
HUF2A	120.47 ± 0.26	HUF2B	99.40 ± 0.15
HUF3A	35.13 ± 0.35	HUF3B	98.78 ± 3.12
HUF4A	37.69 ± 3.09	HUF4B	1.15 ± 0.71