Permeation Mechanism of Caffeine and Naproxen through in vitro Human Epidermis: Effect of Vehicles and Penetration Enhancers

Conclusion: A permeation enhancer-induced alteration in diffusivity, rather than effects on SC solubility, was the main driving force behind increases in permeation flux of the hydrophilic molecule caffeine. For the more the lipophilic molecule naproxen, increased SC solubility drove the increases in permeation flux.Skin Pharmacol Physiol 2019;32:132 –141
Source: Skin Pharmacology and Physiology - Category: Dermatology Source Type: research