Pj-EE	P. japonica ethanol extract
MMPs	Matrix metalloproteinases
NRF2	Nuclear factor (erythroid-derived 2)-like 2
HO-1	Heme oxygenase-1
MITF	Microphthalmia-associated transcription factor
α-MSH	α-melanocyte-stimulating hormone
ROS	Reactive oxygen species
UV	Ultraviolet
PI3K	Phosphatidylinositol-4,5-bisphosphate 3-kinase
AKT	Protein kinase B
MC1R	Melanocortin 1 receptor
CREB	cAMP response element-binding protein
RT-PCR	Reverse transcription-polymerase chain reaction
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
ABTS	2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt