HPLC method development/validation and skin diffusion study of caffeine, methyl paraben and butyl paraben as skin–diffusing model drugs

• Randa S. H. Mansour ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Writing – original draft, Writing – review & editing

  * E-mail: rmansour@philadelphia.edu.jo

  Affiliation Faculty of Pharmacy, Philadelphia University, Amman, Jordan

  https://orcid.org/0000-0002-8652-810X

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• Imad I. Hamdan,

  Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing

  Affiliation School of Pharmacy, University of Jordan, Amman, Jordan

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• Mutaz S. H. Salem,

  Roles Investigation, Methodology

  Affiliation Faculty of Pharmacy, Philadelphia University, Amman, Jordan

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• Enam A. Khalil,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation School of Pharmacy, University of Jordan, Amman, Jordan

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• ALSayed A. Sallam

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation Al-Taqaddom Pharmaceutical Industries Inc., Amman, Jordan

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