1. Kayyali Chair for Pharmaceutical Industry, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia;
2. Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia;
3. Department of Biochemistry, College of Pharmacy, Al-Azhar University, Cairo, Egypt;
4. Department of Pharmaceutics, College of Pharmacy, Al-Azhar University, Cairo, Egypt;
5. Department of Dermatology, College of Medicine, King Saud University, Riyadh, Saudi Arabia;
6. Vitiligo Research Chair, College of Medicine, King Saud University, Riyadh, Saudi Arabia;
7. Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt;
8. Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia