“…30, 31 Thus, it appears that the epidermis thins with age at some body sites, such as the upper inner arm 32, 33 and back of the upper arm, 34 but remains constant at others, such as the buttock, dorsal forearm, and shoulder 35 -a variation not explained by sun or environmental exposure alone. 30 Although epidermal thickness appears to remain largely constant with advancing age, there is some variability in keratinocyte shape and size with age, specifically that these cells become shorter and flatter in contrasts to an increase in corneocyte size potentially as a result decreased epidermal cell turnover with age. 13 Wrinkling in Asian skin has been documented to occur later and with less severity than in white Causasians.…”