Table 4.

Characteristics of the Optimized Collagen-Loaded NE and Vit C-Loaded NE Before and After Storage at (25±2 °C/60±5% RH) for 6 Months

Formulations	GS (nm)	PDI	T (%)	Viscosity (cp)
Collagen-loaded NE before storage	19.41±4.17	0.50 ± 0.01	99.98±0.01	402.00±5.02
Collagen-loaded NE after storage	19.95 ± 3.37	0.51± 0.1	99.98± 0.12	411.00±9.31
Vit C-loaded NE before storage	26.15 ± 1.02	0.49±0.04	98.34±0.21	357.00±11.31
Vit C-loaded NE after storage	25.82 ± 2.35	0.52±0.03	98.57±0.11	365.00±8.78

Abbreviations: GS, globule size; PDI, polydispersity index; %T, percent transmittance.