Updating 'Data on the determination of human epidermis integrity in skin permeation experiments by electrical resistance' with Data on pig ear skin.

The data presented in this article are an update of the dataset provided by Musazzi et al. [1] and are related to the research article entitled "Equivalence assessment of creams with quali-quantitative differences in light of the EMA and FDA regulatory framework" [2]. In vitro permeation study (IVPT) is typically conducted using the method of Franz's diffusion cell for assessing the biopharmaceutical performance of topically applied products. While the human epidermis is considered the benchmark, various animal models (for instance, pig ear) have been accepted as a permeation membrane. Nonetheless, it is crucial to evaluate the integrity of the membrane to ensure the quality of the experiments. The methods employed for this assessment vary, and the outcomes are heavily reliant on the operational conditions, and the model membrane. The article contributes to the existing dataset by providing data on the electrical resistance values of pig ear skin samples and their correlation with the in vitro permeability fluxes of caffeine and benzoic acid. This data is utilized to determine a suitable cut-off for verifying the skin integrity of such an animal model. This information could be beneficial for facilitating critical or comprehensive analyses, contributing to the creation of a standard method.

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