Objective To quantity the physiological properties and the image features of faciocervical skin in Hefei narmal population,and to analyze their relationship between sex and age. Methods 500 healthy volunteers in 5age groups were enrolled in this study. A multifunctional skin physiology monitor( Courage & Khazaka electronic Gmb H,Germany) was used to measure skin sebum content( SC) hydration,transepidermal water loss( TEWL),erythema index and melanin index in 3 different locations of the face. Facial images(...