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

Complex assessment of age‐specific morphofunctional features of skin of different anatomic localizations

“…Unlike results of analogous studies , our data show unexpectedly weak dependence of skin hydration (capacity of a dielectric medium) on age in areas that are not exposed to external action, whereas in the open areas the hydration‐age correlation is highly significant (−0.53, P = 0.00025). This behavior allows studying the efficacy of systemic or topical treatment aimed at reducing xerodermia in closed areas neglecting age.…”

Complex assessment of age‐specific morphofunctional features of skin of different anatomic localizations

“…Unlike results of analogous studies , our data show unexpectedly weak dependence of skin hydration (capacity of a dielectric medium) on age in areas that are not exposed to external action, whereas in the open areas the hydration‐age correlation is highly significant (−0.53, P = 0.00025). This behavior allows studying the efficacy of systemic or topical treatment aimed at reducing xerodermia in closed areas neglecting age.…”

Variation of Skin Surface pH, Sebum Content and Stratum Corneum Hydration with Age and Gender in a Large Chinese Population

“…In agreement with previous findings [27,36,40] , our results show that skin surface pH increases in the aged compared to the young group although no difference in skin surface pH on the forearms between old and young subjects was reported by others [28] . In contrast to the previous findings in 10 subjects studied in the USA [27] , our results did not show any significant difference in skin surface pH in either males or females between the forehead and the forearm in all age groups.…”

Age‐dependent changes in stratum corneum barrier function

“…Transepidermal water loss measured on the face was found to be higher than on the two arm sites confirming previous reports . There was no statistical difference for the values between the two arm sites.…”

Complex assessment of age‐specific morphofunctional features of skin of different anatomic localizations

“…Unlike results of analogous studies , our data show unexpectedly weak dependence of skin hydration (capacity of a dielectric medium) on age in areas that are not exposed to external action, whereas in the open areas the hydration‐age correlation is highly significant (−0.53, P = 0.00025). This behavior allows studying the efficacy of systemic or topical treatment aimed at reducing xerodermia in closed areas neglecting age.…”

Variation of Skin Surface pH, Sebum Content and Stratum Corneum Hydration with Age and Gender in a Large Chinese Population

“…In agreement with previous findings [27,36,40] , our results show that skin surface pH increases in the aged compared to the young group although no difference in skin surface pH on the forearms between old and young subjects was reported by others [28] . In contrast to the previous findings in 10 subjects studied in the USA [27] , our results did not show any significant difference in skin surface pH in either males or females between the forehead and the forearm in all age groups.…”

Age‐dependent changes in stratum corneum barrier function

“…Transepidermal water loss measured on the face was found to be higher than on the two arm sites confirming previous reports . There was no statistical difference for the values between the two arm sites.…”

Complex assessment of age‐specific morphofunctional features of skin of different anatomic localizations

“…Unlike results of analogous studies , our data show unexpectedly weak dependence of skin hydration (capacity of a dielectric medium) on age in areas that are not exposed to external action, whereas in the open areas the hydration‐age correlation is highly significant (−0.53, P = 0.00025). This behavior allows studying the efficacy of systemic or topical treatment aimed at reducing xerodermia in closed areas neglecting age.…”

Variation of Skin Surface pH, Sebum Content and Stratum Corneum Hydration with Age and Gender in a Large Chinese Population

“…In agreement with previous findings [27,36,40] , our results show that skin surface pH increases in the aged compared to the young group although no difference in skin surface pH on the forearms between old and young subjects was reported by others [28] . In contrast to the previous findings in 10 subjects studied in the USA [27] , our results did not show any significant difference in skin surface pH in either males or females between the forehead and the forearm in all age groups.…”

Age‐dependent changes in stratum corneum barrier function

“…Transepidermal water loss measured on the face was found to be higher than on the two arm sites confirming previous reports . There was no statistical difference for the values between the two arm sites.…”