Skin aging: effect on transepidermal water loss, stratum corneum hydration, skin surface pH, and casual sebum content

KP Wilhelm, AB Cua, HI Maibach - Archives of dermatology, 1991 - jamanetwork.com
• This study investigates the effect of cutaneous aging on transepidermal water loss, stratum
corneum hydration (capacitance), skin surface pH, and casual sebum content. Because the
physiologic condition of skin varies considerably with anatomic region and skin aging might
demonstrate regional variability, all factors were studied on 11 anatomic locations in 14
young adult (seven female and seven male subjects; 26.7±2.8 years [mean±SD]) and 15
aged human volunteers (seven female and seven male subjects; 70.5±13.8 years) …