SC	Stratum corneum
SLNs	Solid lipid nanoparticles
EE	encapsulation efficiency
NLCs	Nanostructured lipid carriers
PNP	Polymeric nanoparticle
PM	Polymeric micelle
CDs	Cyclodextrins
UV	Ultraviolet
CPDs	Cyclobutane pyrimidine dimers
NEG	non-enzymatic glycation
PPE	Porcine placenta extract
ROS	Reactive oxygen species
RT	Retinol palmitate
EGCG	Epigallocatechin gallate
FA	Ferulic acid
T-Res	Trans-Resveratrol
CUR	Curcumin
FDA	United States Food and Drug Administration
Ga	Gelidium amansii
UP	Undecylenoyl phenylalanine
HA	hyaluronic acid
LMW-HA	low molecular weight HA
NAMs	New Approach Methodologies