MSCs	Mesenchymal Stem Cells
MSC-Exos	Mesenchymal Stem Cell–Derived Exosomes
MSC-EVs	Mesenchymal Stem Cell–Derived Extracellular Vesicles
ADSC	Adipose tissue-derived Stem Cell
RCT	Randomized Controlled Trial
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
GMP	Good Manufacturing Practice
NGS	Next-Generation Sequencing
MudPIT	Multidimensional Protein Identification Technology
ECCA	Échelle d’Évaluation Clinique des Cicatrices d’Acné
GAIS	Global Aesthetic Improvement Scale
IGA	Investigator Global Assessment
RoB 2	Revised Cochrane Risk of Bias Tool
MINORS	Methodological Index for Non-Randomized Studies
NTA	Nanoparticle Tracking Analysis