Ethosomes of Phenylethyl Resorcinol as Vesicular Delivery System for Skin Lightening Applications

Table 3

In vitro skin permeation parameters of PR following topical application of ethosome, liposome, 20% PG solution, and 30% hydroethanolic solution formulations.

Formulations	(µg/cm^2/h)	(×10^−3 cm/h)	(h)
Ethosome
Liposome
PG solution
30% hydroethanolic solution

Each data represents the mean ± SEM (n = 5). , steady state flux; , permeability coefficient; , lag time. a–c: means in the same column with different superscript letter differ significantly ().