Skip to main content
. 2021 Mar 10;12(3):294. doi: 10.3390/mi12030294

Figure 8.

Figure 8

Representation of different layers of the skin along with the diffusion of drugs in the skin. The layers can be considered as a porous medium and the porous medium equations can be written for the mass transfer across the SC, Epidermis, and Dermis. For the blood flow in the tissues, the Darcy model can be adopted.