DR. Haya Aljohar is a pharmacist Consultant, an Associate professor in pharmaceutical chemistry at the College of Pharmacy, King Saud University, and a consultant at the Saudi Food and Drug Authority. Dr. Aljohar is a peer-reviewer for many scientific journals such as the Journal of Herbal Medicine, the International journal of food properties, and the Saudi Pharmaceutical Journal. Most of her published work is in the field of analytical pharmaceutical chemistry to develop new methods for drug and herbal quality control, stability study, and applied science by using highly advanced chromatographic instruments She has a long experience in the field of laboratory quality assurance and quality control.