Tehran University of Medical Sciences Traditional and Integrative Medicine 2476-5104 6 2 2021 06 22 152 157 Siukan Law Department of Science, School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong Chuiman Lo Department of Science, School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong Jie Han Department of Science, School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong Albert Wingnang Leung School of Nursing, Tung Wah College, 31 Wylie Road, Ho Man Tin, Kowloon, Hong Kong Chuanshan Xu Key Laboratory of Molecular Target and Clinical Pharmacology, State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China 2021 01 19 2021 02 18 Dandelion (Taraxacum officinale) belongs to the Asteraceae or sunflower family. Its leaves, stems, and roots have been used in traditional Chinese herbal for a long time because dandelion has a wide range of pharmacological properties including anti-microbial, anti-viral, anti-inflammatory, and anti-infectious as well as anti-oxidation especially in the dandelion root extract which is the most medicinal value. A clinical study of dandelion extracts on skin acne and a simple preparation method of the dandelion extract would be discussed since the dandelion extract has low toxicity on the skin, even is non-toxic based on the British Herbal Pharmacopoeia recommendation.  https://jtim.tums.ac.ir/index.php/jtim/article/view/284