1. Lee KM, Im SC, Kim JS, Lee BH. A Clinical Study on Facial Wrinkles Treated with Miso Facial Acupuncture - Measured by The Facial Skin Photographing System -The Journal of Korean Acupuncture & Moxibustion Society. 2010 ; 27(1) : 101-7.
2. Yarr M, Gilchrest BA. Aging of skin. In: Freedberg IM, Eisen AZ, Wolff K, Austen KF, Goldmith LA, Katz SI, eds. Fitzpatrick's dermatology in general medicin. 6th ed. New york: McGraw-Hill. 2003 : 1386-98.
3. Choi SS. A study on the whitening substrate of natural products. PhD Thesis. Seoul : Chung-Ang University. 2001.
4. Effect of Korean red ginseng on collagen biosynthesis and MMP-I activity in human dermal fibroblast
5. Jung TG, Kim MJ, Im GR, Yun GS. Moisturizing and Anti-oxidation Effect of Astragalus membranaceus Root ExtractJ Soc Cosmet Scientists Korea. 2006 ; 32(3) : 193-200.