Tackling acne vulgaris by fabrication of tazarotene-loaded essential oil-based microemulsion: In vitro and in vivo evaluation Article Swipe

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Acne Tazarotene Tea tree oil In vivo Ex vivo Microemulsion Dispersity Materials science Biomedical engineering Pulmonary surfactant Chemistry Dermatology Chromatography Essential oil Medicine Biology Biochemistry Polymer chemistry Biotechnology

Noha M. Badawi , Rania M. Yehia , Caroline Lamie , Khaled A. Abdelrahman , Dalia Attia , Doaa A. Helal ·

YOU? · · 2023 · Open Access · · DOI: https://doi.org/10.1016/j.ijpx.2023.100185 · OA: W4378715390

This study aimed to formulate and optimize an anti-acne drug namely tazarotene (TZR) in essential oil-based microemulsion (ME) using either Jasmine oil (Jas) or Jojoba oil (Joj). TZR-MEs were prepared using two experimental designs (Simplex Lattice Design®) and characterized for droplet size, polydispersity index, and viscosity. Further in vitro, ex vivo, and in vivo investigations were performed for the selected formulations. Results revealed that TZR-selected MEs exhibited suitable droplet size, homogenous dispersions, and acceptable viscosity, in addition to spherical-shaped particles in morphology. The ex vivo skin deposition study showed a significant TZR accumulation in all skin layers for the Jas-selected ME over the Joj one. Further, TZR didn't show any antimicrobial activity against P. acnes, however, it was boosted when it was incorporated into the selected MEs. The in vivo study results of the infected mice ears induced by P. acnes revealed that our selected MEs successfully reached a high level of ear thickness reduction of 67.1% and 47.4% for Jas and Joj selected MEs, respectively, versus only 4% for the market product. Finally, the findings confirmed the ability to use essential oil-based ME, particularly with Jas, as a promising carrier for topical TZR delivery in the treatment of acne vulgaris.