Again, Johann Wiechers published a paper with the University of Potchefstroom in South Africa. Anja Otto did do her PhD at that university and Johann was heavily involved in the direction of that work investigating the influence of emulsifiers and formulation structure on the dermal and transdermal penetration of active ingredients.
See the article: Effect of Emulsifiers and Their Liquid Crystalline Structures in Emulsions on Dermal and Transdermal Delivery of Hydroquinone, Salicylic Acid and Octadecenedioic Acid, Skin Pharmacol. Physiol. 23 (2010) 273-282. The abstract can be read by clicking here.
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