Development and Evaluation of Microemulsions for Transdermal Delivery of Insulin

Table 2

Results of curve fitting of the in vitro skin permeation data of various insulin-loaded microemulsions.

Formulation codes	𝑅^2 values				Diffusional exponent (𝑛)
	Zero order	First order	Higuchi	Korsmeyer-Peppas
F1	0.926	0.591	0.886	0.973	0.426
F2	0.888	0.551	0.914	0.966	0.535
F3	0.802	0.511	0.921	0.963	0.652
F4	0.992	0.598	0.752	0.954	0.833
F5	0.993	0.595	0.741	0.961	0.841
F6	0.989	0.580	0.740	0.923	0.912