CI	Confidence Interval
Cochran Risk-of-Bias Tool	Cochrane Risk-of-Bias Tool for Randomized Trials
CINAHL	Cumulative Index to Nursing and Allied Health Literature
Embase	Excerpta Medica Database
IPL	Intense Pulsed Light
I2	I-Squared Statistic
KTP laser	Potassium Titanyl Phosphate Laser
MMASI	Melasma Area and Severity Index
Nd: YAG laser	Neodymium-Doped Yttrium Aluminum Garnet Laser
Nd laser	Neodymium Laser
OC	Observed Cases
PIH	Post-inflammatory Hyperpigmentation
PDL	Pulsed Dye Laser
PL	Photolysis
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
Q Statistic, Q-value	Q Statistic
Q-switched laser	Q-switched Laser
RCTs	Randomized Controlled Trials
RR	Risk Ratio
ROB	Risk of Bias
SE	Standard Error
SMD	Standardized Mean Difference
SP	Standard Pulsed
τ2	Between-Study Variance
USA	United States of America
VAS	Visual Analog Scale
WHO	World Health Organization
n	Number
nm	Nanometer
p	p-value
MoveoPL mode	Moveo Photo Light Mode
PubMed	Public/Publisher MEDLINE